Attractive numbers: Difference between revisions

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This entry uses:
* `is_prime` as defined at https://rosettacode.org/wiki/[[Erd%C5%91s-primes#jq | Erdős primes]] on RC
* `prime_factors` as defined at https://rosettacode.org/wiki/[[Smith_numbers#jq | Smith numbers]] on RC
<lang jq>
def count(s): reduce s as $x (null; .+1);
2,489

edits