Calculate P-1 probability:
Exponent:
B1:
B2:
Factored Bits:
or
ECM T-Level:
K*B^N+C * 2^108654281 +
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:

M108,654,281, factored to 77.000 bits, with B1=450000 and B2=22000000, using K*B^N+C = 1*2^108654281-1
Probability = 3.332511%
Should take about 10.335614 GHz-days (using FFT size 6,144K)
Recommended RAM allocation: (Prime95 v30.7 and earlier)
Relative Primes84896288432480960
RAM needed (MB)9932,9595,31914,75621,83424,19347,786