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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Proper-divisors/Factor/proper-divisors.factor Normal file
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USING: formatting io kernel math math.functions
math.primes.factors math.ranges prettyprint sequences ;
: #divisors ( m -- n )
dup sqrt >integer 1 + [1,b] [ divisor? ] with count dup +
1 - ;
10 [1,b] [ dup pprint bl divisors but-last . ] each
20000 [1,b] [ #divisors ] supremum-by dup #divisors
"%d with %d divisors.\n" printf