Smallest multiple: Difference between revisions
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<br>2520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder.
<br>What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20?
=={{header|Raku}}==
Exercise with some larger values as well.
<lang perl6>use Prime::Factor;
sub minimum-multiple ($n where * > 1) {
my %max-factor;
for 2..$n { .&prime-factors.Bag.map: { %max-factor{.key} max= .value } }
[*] flat %max-factor.map: { .key xx .value }
}
say "$_: ", .&minimum-multiple for <10 20 200 2000>;
printf "%.3f seconds elapsed\n", now - INIT now;</lang>
{{out}}
<pre>10: 2520
20: 232792560
200: 337293588832926264639465766794841407432394382785157234228847021917234018060677390066992000
2000: 151117794877444315307536308337572822173736308853579339903227904473000476322347234655122160866668946941993951014270933512030194957221371956828843521568082173786251242333157830450435623211664308500316844478617809101158220672108895053508829266120497031742749376045929890296052805527212315382805219353316270742572401962035464878235703759464796806075131056520079836955770415021318508272982103736658633390411347759000563271226062182345964184167346918225243856348794013355418404695826256911622054015423611375261945905974225257659010379414787547681984112941581325198396634685659217861208771400322507388161967513719166366839894214040787733471287845629833993885413462225294548785581641804620417256563685280586511301918399010451347815776570842790738545306707750937624267501103840324470083425714138183905657667736579430274197734179172691637931540695631396056193786415805463680000
0.315 seconds elapsed</pre>
=={{header|Ring}}==
<lang ring>
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