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Old 2018-07-18, 21:09   #8
a1call
 
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"Rashid Naimi"
Oct 2015
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I would appreciate if someone would confirm that F33 is the smallest Fermat number with unknown primality status.

I would also appreciate if someone would work out the number of decimal-digits of F33.
I keep running out of memory computing it.

Thank you advance.

ETA
Quote:
Now we know that all of the Fermat numbers are composite for the other n less than 31
http://primes.utm.edu/glossary/xpage/FermatNumber.html

Are F31 and F32 known to be composite?

Last fiddled with by a1call on 2018-07-18 at 21:25
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