The reason BigInt was there was to allow for calculations of 1000! or larger (which was the original intent). However, I don't see how this alone could explain the timing differences. For example, in my original code, the recursive function

The non-recursive function

In other words, are you saying that memory allocation for one extra BigInt is that slow??

In reply to Re: Re: Factorial algorithm execution time by gri6507
in thread Factorial algorithm execution time by gri6507

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