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Did you receive any emails choosing composite numbers? To me, 51 sounds prime.
by parfe 14y ago
Did you receive any emails choosing composite numbers? To me, 51 sounds prime.
- robinsloan 14y agoYes, many! On the submission form, I even referred folks to Wikipedia's list of prime numbers but, alas.
- baddox 14y agoA number is divisible by 3 if the sum of its digits is divisible by 3.
- deleted 14y ago[deleted]