Largest proper divisor of n: Difference between revisions
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(→{{header|Ruby}}: added prime check) |
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=={{header|Ruby}}== |
=={{header|Ruby}}== |
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<lang ruby>require 'prime' |
<lang ruby>require 'prime' |
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def a(n) |
def a(n) |
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return 1 if n == 1 || n.prime? |
return 1 if n == 1 || n.prime? |
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