10 lines
244 B
Ruby
10 lines
244 B
Ruby
require "prime"
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def prime?(value, generator = Prime::Generator23.new)
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return false if value < 2
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for num in generator
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q,r = value.divmod num
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return true if q < num
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return false if r == 0
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end
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end
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p (1..50).select{|i| prime?(i)}
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