mersenneforum.org - View Single Post - Question about number of the form 2^n + 1

bur · 2020-10-14, 13:02

Ok, thanks. So 2^n+1 is proven to only be prime if it is a Fermat number.

2020-10-14, 13:02	#8
bur Aug 2020 54₁₀ Posts	Ok, thanks. So 2^n+1 is proven to only be prime if it is a Fermat number.