email me
close
Look up single exponent:
Look up factor:
browse
by range
Look up many exponents:
List of Mersenne Prime numbers
GIMPS progress visualization
Look up exponent / factor
Calculate CPU Credit for any assignment
CPU Throughput calculator
Prime95 benchmarks
Estimated GPU trial-factoring performance
Estimated GPU Lucas-Lehmer performance
P-1 probability calculator
Exponents that were poorly P-1 factored
Factors missed by P-1
Exponents with less TF than expected
Exponents with the most known factors
P-1 factors found via Brent-Suyama
Smoothest P-1 factors
Probable prime (PRP) testing
Worktodo balancer
Split large assignment blocks to workers
Worktodo skip known-factor assignments
P-1 to TF worktodo rewriter
TF worktodo bit level splitter
Graph of known factor bit depths (0-2
32
)
Graph of known factor bit depths (0-999M)
Graph of known factor bit depths (0-192M)
Graph of known factor bit depths (0-384M)
Trial-factoring assignment >1000M
Trial-Factoring bit-depth lookup
Prime Factorization for small numbers
Calculate number of digits in an exponent
Convert GIMPS Factoring Effort to PFactor
External Links:
Mersenne Forum
Mersenne Wiki
GPU to 72
by
Chris Halsall
Factorization using ECM
Mersenne software download mirror
Calculate bit size of factor:
Calculate P-1 probability:
Exponent:
B1:
B2:
LL tests saved
- use B1/B2 above -
Save 1 L-L test
Save 2 L-L tests
Save 3 L-L tests
Save 4 L-L tests
Save 5 L-L tests
Save 6 L-L tests
Save 7 L-L tests
Save 8 L-L tests
Save 9 L-L tests
Save 10 L-L tests
Factored Bits:
-default-
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
K*B^N+C
*
2
^
+
or
Calculate bounds from desired probability or effort:
Exponent:
Probability:
%
Work-Effort:
GHz-days
pre P-1 TF:
-default-
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
Stage 1 only:
check to force stage1-only P-1 (B1=B2)
Force B1 to be:
-ignore-
=
>=
<=
