16 lines
184 B
Ruby
16 lines
184 B
Ruby
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class PrimeFactors
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def self.for(i)
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r = []
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d = 2
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while i > 1
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if i % d == 0
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i /= d
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r << d
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else
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d += 1
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end
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end
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r
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end
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end
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