June 2018 Update
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5278 changed files with 84726 additions and 14379 deletions
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@ -3,7 +3,7 @@ require 'prime'
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class Integer
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def semi_prime?
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prime_division.map( &:last ).inject( &:+ ) == 2
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prime_division.map( &:last ).sum == 2
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end
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end
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