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Search: Posts Made By: VBCurtis
Forum: Miscellaneous Math 2020-05-15, 18:59
Replies: 16
Views: 818
Posted By VBCurtis
If n is the exponent, as you have clearly...

If n is the exponent, as you have clearly indicated, n *cannot* have millions or billions of digits for any meaningful description or test for primality.

The number 2^n may indeed be as large as...
Forum: Miscellaneous Math 2020-05-13, 21:52
Replies: 16
Views: 818
Posted By VBCurtis
You keep saying "calculating 2^{some 5-digit...

You keep saying "calculating 2^{some 5-digit number}". What calculation are you doing?

You don't need the decimal expansion to decide if it is prime. You also don't need to write your own...
Forum: Miscellaneous Math 2020-05-13, 17:25
Replies: 16
Views: 818
Posted By VBCurtis
As for "which methods" from the OP question- it...

As for "which methods" from the OP question- it depends on the form that describes your number, as well as how big "big digits" is.

Give us more info about what size and what form you have in...
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