[science_man_88]

Originally Posted by ewmayer

So instead of repeatedly computing x = x^2-2 (mod 2^p-1), you set x = 4 and repeatedly computed x^2-2 without updating x ... so your final result should be x = 4, which means your x==0 of the final result should have come up 'false'. You didn't notice that?

I didn't know the exponents created primes. I haven't put CRG's MeVec script back on my device.