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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/Additive-primes/Factor/additive-primes.factor Normal file
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USING: formatting grouping io kernel math math.primes
prettyprint sequences ;
: sum-digits ( n -- sum )
0 swap [ 10 /mod rot + swap ] until-zero ;
499 primes-upto [ sum-digits prime? ] filter
[ 9 group simple-table. nl ]
[ length "Found %d additive primes < 500.\n" printf ] bi