```{index} single: blcm; Math::GMP function ``` ```{index} single: Math::GMP::blcm; Perl function ``` # blcm Return the least common multiple of `$m` and `$n`. ## Synopsis ```perl my $x = Math::GMP->new(6); print $x->blcm(4); # 12 ``` Also registered as `lcm`. Result is always non-negative; `blcm($x, 0)` is `0`.