Hello. I am having trouble getting Perl to give me correct answers with large numbers. I am using Perl 5.14.2 on Windows.

6^25 = 28430288029929701376.

When I run the following:

my $bigNumber = 6**25;
printf ("%.f", $bigNumber);

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I get 28430288029929701000.

Assuming that this lack of accuracy was due to 32-bit Perl's trouble with numbers above 2^53, I tried the following:

use Math::BigInt;
my $bigNumber = Math::BigInt->new(6**25);
print "$bigNumber";

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which gives me 28430288029929700000

I don't understand why BigInt is giving me an even less accurate answer.

In reply to Math With Big Numbers by AlligatorStamp

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