Here is a few examples of the same expression in strawberry perl 5.38.2 and in the gfortran packaged with it. I believe the fortran.
use strict; use warnings; use integer; use feature 'say'; my $base = 3; my $power = 33; my $result = $base ** $power; printf "%d\n", $result; $power = 38; $result = $base ** $power; printf "%d\n", $result
program fort integer*8 base, power integer*8 result base = 3 power = 33 result = base ** power +1; print *, result power = 38 result = base ** power +1; print *, result end program

RESULTS

C:\Users\Bill\forums\monks>perl power3.pl 5559060566555523 1350851717672992000 C:\Users\Bill\forums\monks>gfortran -o power3 power3.f90 C:\Users\Bill\forums\monks>power3.exe 5559060566555524 1350851717672992090
Bill

In reply to Re^5: Largest integer in 64-bit perl by BillKSmith
in thread Largest integer in 64-bit perl by harangzsolt33

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