Perfect numbers: Difference between revisions
→{{header|Python}}: (removed for repair :-)
(→{{header|Python}}: added a faster variant) |
(→{{header|Python}}: (removed for repair :-)) |
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Functional style:
<lang python>perf = lambda n: n == sum(i for i in xrange(1, n) if n % i == 0)</lang>
=={{header|R}}==
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