RosettaCodeData/Task/Repunit-primes/Raku/repunit-primes.raku
2023-07-01 13:44:08 -04:00

7 lines
218 B
Raku

my $limit = 2700;
say "Repunit prime digits (up to $limit) in:";
.put for (2..16).hyper(:1batch).map: -> $base {
$base.fmt("Base %2d: ") ~ (1..$limit).grep(&is-prime).grep( (1 x *).parse-base($base).is-prime )
}