#!/usr/bin/perl -l BEGIN { $| = 1; $^W = 1; } use strict; use warnings; use bignum lib => 'FastCalc'; use Memoize; memoize('really_big'); really_big(); sub really_big { bignum->accuracy(15); bignum->precision(15); my $big_number = 37107287533902102798797998220837590246510135740250 + 46376937677490009712648124896970078050417018260538; print $big_number; }