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I Am Fascinated By Prime Numbers

Personal Stories, Advice, and Support 219 People

    Left Trunctable Primes

    As a counterpoint to my story "Right Trunctable Primes", the curious will be satisfied to know there ARE Left Trunctable Primes as well, which are prime numbers that remain prime when the leading digit is removed successively. Here are some: 2, 3, 5, 7, 13, 17, 23, 37, 43, 47, 53...
    freeed freeed 61-65, M 2 Responses Jan 4, 2012

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    73, The Best Number

    My guess is that this has already been posted, but it is a tribute to New Chrissy, nevertheless73 is the best number because:It is the 21st prime number;Its product is 21 (7X3=21);37 is its inverse, which is the 12 prime number12 is the inverse of 21.Dr. Sheldon CooperThis is the...
    Ramrodd Ramrodd 61-65, M Jan 8, 2013

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    Ahhh The Number 13, It Always Fascinates Me..

    I love the number 13 as much as people hate it, along with the number 17, wherever i go i use the number 13 in whatever thing i do!!
    brokenwings13 brokenwings13 22-25, M Apr 25, 2011

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    Is 59595 A Prime Number?

    No, silly, any number ending in 5 is divisible by 5. Why did this number come up? It's how many EP points I reached as of today and I've always thought "symmetrical numbers" are cool. BTW, is the number of EP points YOU have a prime number?
    freeed freeed 61-65, M Apr 16, 2011

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    Why I Love Prime Numbers

    I didn’t always like prime numbers. For Pete’s sake, dividing by 2 is always easier… and 10 is a fabulous number if you’re doing any arithmetical work. I discovered the beauty of prime numbers totally by accident. I inadvertently set a timer for 59 minutes. It just...
    fishsweeper fishsweeper 51-55, F 4 Responses Aug 24, 2012

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    Right Trunctable Primes

    These are strange primes in that, if you successively remove the right-most digit another prime results, BUT even stranger is that if you coninue to do this, every "new [smaller]" number will also be prime. Here's an example: 3797  379   37    3...
    freeed freeed 61-65, M 4 Responses Apr 18, 2010

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    Does 1910194 Mean Anything To You?

    It appears in the book Japa Yoga by Svami Sivananda and I always wondered what its significance is - the book's context isn't explicit. It would have been cooler if it were 1910191. Neither of these 2 are prime numbers, however. FYI the next smaller number which is prime is...
    freeed freeed 61-65, M 1 Response Apr 16, 2011

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    Is 2,904,897 A Prime Number?

    This little trick may win a bar bet someday and it's inexplicable on the surface, so is cool just for that. Well, it's not EVEN, so isn't a multiple of 2, doesn't end in 5, so isn't divisible by 5, but that leaves a lot of ground. In case you forgot, you only have to divide a...
    freeed freeed 61-65, M 10 Responses May 26, 2010

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    I almost became a computer criminal at 17 years

    old because of a fascination with prime numbers. I had just read Rivest Shamir and Adlemans article in the 1979 issue of Scientic American on Nondeterministic Polynomail Time Problems. In it they detail the workings of public key cryptosystems, that are used in your browser...
    deleted deleted 26-30 2 Responses Jan 9, 2014

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    The Only 'even' Number That I Like Is 2

    I don't know how I got into the 'prime number thing', but now, when I set my microwave oven or dryer for time, it has to be a prime number. I'm not totally obsessed with prime numbers...they can just be odd numbers; but even number drive me nuts... with the exception of 2, which...
    fishsweeper fishsweeper 51-55, F Apr 23, 2012

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    Anyone Else Solve That Google Riddle To Find The First 10 Digit Prime In E?

    If so, how? I hacked my way through it using microsoft excel (cause I'm not a coder) took a few hours but very fun! http://www.npr.org/templates/story/story.php?storyId=3916173
    dlmolicares dlmolicares 36-40 2 Responses May 4, 2012

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    All you Prime Number freaks.

    .... What books on the Theory of Numbers have you people liked, from general interest, to textbooks and the like.....
    atenra11 atenra11 46-50, M 2 Responses Nov 4, 2014

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    I AM 177

    I happened on this group by 'accident' (although, in reality, there are really no accidents). Anyway, if I am permitted to join, that would make me no. 177 (another prime number). I am also writing this on Saturday, the seventh day of the week (yet another prime).
    leprechaunz leprechaunz 56-60, M Sep 20, 2013

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    I Think That I Must Have Lost Some IQ Points!

    When I was a kid in both Junior-High and High School, I was tested, and my IQ scores were 165 and 185. I could figure out puzzles and riddles, decipher codes, analyze situations, size up people, and do a plethora of 'brainy' other stuff way back when. Later, I gave birth to 5...
    fishsweeper fishsweeper 51-55, F 5 Responses Apr 29, 2012

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    Prime Numbers

    Sieve_of_Eratosthenes_animation.gif‎ (445 × 369 pixels, file size: 154 KB, MIME type: image/gif, looped, 159 frames, 37s)
    WilliamC WilliamC 61-65, M 3 Responses Jan 2, 2012

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    Related Experiences

    I wonder if we never realise the power in a name? From places and authors, the religeous and the occult names always have a sense of power, the ability to conjour images, moods...
    notext notext 46-50, M Feb 2

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    I am fascinated by my OWN behaviour! Ah ha ha I'm serious! I'm a calm and quiet girl. Reserved and polite... I'm also funny and clumsy... But one thing that never stops to...
    EarlPhantomhive EarlPhantomhive 18-21, F 2 Responses Feb 8

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    I was filling up my car a little while ago and the numbers were BOTH even! Haha, this is the first. Sorry, but I'm OCD (about a lot of things) when it comes to numbers!
    lizygurl lizygurl 18-21, F 1 Response Feb 11

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    I wish everyone was fascinated by dreams. I honestly believe that dreams come to service and help the dreamer, that's all that dreams want to do. Our conscious minds sometimes fail...
    Arcanorum Arcanorum 22-25, F 1 Response Feb 5

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    I have always been fascinated with serial killers. What makes them tick, what made the do it, what was the trigger,how did they choose the victims, HAVE I EVER PASSED ONE ON THE...
    jrf9782 jrf9782 31-35, F 3 Responses Feb 11

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    it intrigues me...i can spend hours just watching humans communicate with eachother about nothing I care for...and the only thing I'm looking at is thier reaction and expression...
    EternalViolet EternalViolet 26-30, F 1 Response Feb 13

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    It is natural to be fascinated with the Unknown. The Universe.  It's literally in front of us and we just  don't have the understanding of it. Where did we come from? Are we...
    MyLady9 MyLady9 46-50, F 1 Response 6 days ago

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    The pigeon that frequently sits on my kitchen window sill never seems to be getting away from me. I thought my working in the kitchen would interrupt its activities, its privacy...
    hiddentears hiddentears 26-30, F 3 days ago

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    i dont know what it is about them that interests me so much. i guess its just because i could never imagine doing these things to people. i want to know how their minds work when...
    jermdbt80612 jermdbt80612 18-21, F 4 Responses 3 days ago

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    So I got for camping four days and I come back to find the world at war over a DRESS. Whatever they feed you guys online is just bullshit, I don't think it's even the same dress...
    DarkLoser DarkLoser 13-15, F 2 Responses 5 hrs ago

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    There are still good people in the world despite all the negative images you read or hear about, even here on EP. As I've waded through the inappropriate notes and messages...
    MaskedOne MaskedOne 41-45, F 3 Responses 2 hrs ago

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    Hey feet people! There seems to be a good many of you on this site, and I say go for it, whatever floats your boat. However, some of us just think feet are for walking, so how...
    SavannahAnsley SavannahAnsley 41-45, F 2 Responses Feb 1

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    Just got discharged from the army. Feels weird to be a civilian again
    tomtom123456789 tomtom123456789 18-21, M 3 Responses Feb 1

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    Reading "The human zoo " by Desmond Morris . A great book for anyone interested in human behaviour .
    girlfoxy girlfoxy 36-40, F Feb 1

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    I think I'm a hyper sexual narcissist
    janey2006 janey2006 31-35, F 2 Responses Feb 1

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    We all derive from the same source and yet it's our experiences that pull us together and drive us apart all in the same breath.
    Milesfromyou Milesfromyou 36-40, M 2 Responses Feb 1

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    My boyfriend is ******* weird sometimes.
    brokenteacup2 brokenteacup2 26-30, F Feb 2

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    Say there is a kid. His parents cannot provide for him. He is literally starving to death. He obtains a gun. He robs a bank, killing a person who was cashing in a check. He demands...
    NameIsMailbox NameIsMailbox 16-17, M 4 Responses Feb 2

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    Those people who always have to add to a conversation "well women do it too." "Well men do it too".... Are you really trying to justify actions by saying oh but they do it too so...
    Nottheaveragegirl Nottheaveragegirl 18-21, F 8 Responses Feb 3

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    I have this friend who tells me about every girl that allegedly has a crush on him, which is apparently every girl that's nice to him. Today he talked about a girl he knows who...
    SerSean SerSean 18-21, M 1 Response Feb 3

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    I'm not sure what just clicked but I'm sobbing. I came to the realization about something but I've already blocked it out again and completely forgot what it was now. I need to...
    somethingxmissing somethingxmissing 22-25, F Feb 3

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    I am so pissed I could scream. Its hard to explain why. Maybe this will explain it. No I might keep someone around long. But I demand respect! And I expect you to let me get to...
    WickedlilAngel WickedlilAngel 31-35, F 1 Response Feb 3

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    Seems like everyone wants my honest opinion, till it's not what they want to hear.
    BeingHonest BeingHonest 70+ 1 Response Feb 3

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    Studying the brain and the human psyche and mind is something that I am extremely passionate about and I can definitely see myself becoming a clinical psychologist or a...
    losingNemo losingNemo 13-15, F Feb 4

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    I'm convinced the internet has distilled people into disposable avatars.
    Milesfromyou Milesfromyou 36-40, M 4 Responses Feb 4

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    i'm so open to new people, I crave new experiences. I like to laugh and I like to learn. hello all
    chloe3267174 chloe3267174 18-21, F Feb 4

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    I met and shook hands with some strangers this morning, and now my hand smells like SEX. I'm about to scrub my epidermis off in boiling hot water and lava soap. Take me now, Jesus...
    biggunsatx biggunsatx 41-45, M 20 Responses Feb 4

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    Friend: Let's have a argument about Religion and Politics Me: *Puts down sandwich* Oh Uh, I left my fish in the oven.... *Speed walks way* Oh hell no...
    TheDesireToDance TheDesireToDance 22-25, F Feb 5

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    I love sun gazing it makes me feel free and and it makes me appreciate Mother Nature at its best. I love sunshine it brings a smile to my face :) There are so many things in life...
    missyluvslilies missyluvslilies 26-30, F 3 Responses Feb 6

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    I seriously don't get get why people cut themselves..... I mean seriousness Get over it people there's more to life than slitting your wrist and being sad about it!!!! Get back Up...
    Dani3lJD Dani3lJD 13-15, M 6 Responses Feb 6

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    Do you believe that science is absolute and objective fact or is it as human and affected by our biological and cognitive processes and biases as every other endeavor?
    tearcode tearcode 18-21, F 3 Responses Feb 6

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    The things we do to feel and immediately stop from feeling.
    Milesfromyou Milesfromyou 36-40, M 3 Responses Feb 6

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