16 lines
381 B
Scheme
16 lines
381 B
Scheme
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(define (factors n)
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(let loop ((val n) (div 2) (factors '()))
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(if (= 1 val)
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factors
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(if (= 0 (modulo val div))
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(loop (/ val div) div (cons div factors))
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(loop val (add1 div) factors)
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)
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)
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)
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)
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(define (max lst)
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(foldl (lambda (a b) (if (> a b) a b)) (car lst) (cdr lst)))
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(print (max (factors 600851475143)))
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