Is 2²⁵⁶ + 1 prime? Fermat! - The Ross Program

We'll use Fermat's little theorem to consider whether 2¹⁹ + 2¹³ + 1 is prime and whether 2²⁵⁶ + 1 is prime.

[@ananyapamde4514]

Loved it!!

[@kisonecat]

Thanks!

[@vitthalrastogi8842]

I have find the value of 2²⁵⁶=18446744064709551616. This is correct or not?? I don't know because the google is don't know the answer..

[@vitthalrastogi8842]

I have find the value of 2⁶⁴=18446744064709551616. This is correct or not?? I don't know because the google is don't know the answer..

[@kisonecat]

2²⁵⁶ is bigger than that! What you have is 2⁶⁴ = 18446744064709551616. If you take that number and raise it to the fourth power, you'll get (2⁶⁴)⁴ = 2²⁵⁶ = more than seventy digits, starting with 11579...

[@vitthalrastogi8842]

@@kisonecat yes bro you are right i have calculated only 2⁶⁴=18446744064709551616

[@vitthalrastogi8842]

@@kisonecat i have find the value of 2¹²⁸=340282366588897070217592678343768211456. Please tell me it is right or not the google is not showing the answer