Find a prime factor of 99!-1
Last edited by Math Help; Jun 9th 2005 at 04:32 PM.
Follow Math Help Forum on Facebook and Google+
Originally Posted by cornoth Find a prime factor of 99!-1 101, because 101 is prime and $\displaystyle 99! \equiv -100! \equiv 1 $ in $\displaystyle Z_{101}$
oh thats right, wilson's theorem. thanks hpe!
View Tag Cloud