Calculate P-1 probability:
Exponent:
B1:
B2:
Factored Bits:
or
ECM T-Level:
K*B^N+C * 2^31081 +
or
Calculate bounds from desired probability or effort:
Exponent:
Probability:%
Work-Effort:GHz-days
pre P-1 TF:
Stage 1 only:
Force B1 to be:

M31,081, factored to 136.199 bits, with B1=50000000000 and B2=6.5554818495116E+16, using K*B^N+C = 1*2^31081-1
Probability = 1.676867%
Should take about 2,852,710.315455 GHz-days (using FFT size 2K)
Recommended RAM allocation: (Prime95 v30.7 and earlier)
Relative Primes84896288432480960
RAM needed (MB)01145612