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Wonderer26 Wonderer26 16-17, F 17 Answers Apr 29, 2012

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The ones that will Lotto Super Millions,of course.

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7

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Seven

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5 lol

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69

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31 (= 13 backwards)



13 and 31 are the first 2 happy primes. That is, the sum of the squares of their digits sequence to 1. Example: 31, square 3 + square 1 = 9 + 1 = 10; continue sequence: square 1 + square 0 = 1 + 0 = 1. Therefore 31 is a happy number.



(It is prime because its only factors are 31 & 1)

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4

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7&8

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38, 24, 36

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42

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