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Look up single exponent:
Look up factor:
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by range
Look up many exponents:
List of Mersenne Prime numbers
GIMPS progress visualization
Trial-factoring assignment >1000M
Look up exponent / factor
Calculate CPU Credit for any assignment
CPU Throughput calculator
Estimated GPU trial-factoring performance
Estimated GPU Lucas-Lehmer performance
P-1 probability calculator
P+1 Factors
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
Top P-1 factors of Mersenne numbers
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
Factoring Beyond First Factor
TF distribution for factored exponents
P-1 effort distribution
Exponents that were poorly P-1 factored
Results to BBcode factor results converter
Graphs of Known Factors
0M
<
10
10
All tracked exponents
0M
<
2
32
GPU TF range
0M
<
1000M
PrimeNet range
0M
<
193M
low-PrimeNet, low-res
0M
<
385M
low-PrimeNet, high-res
50M
<
146M
PrimeNet wavefront
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
Prime Wiki
GPU to 72
by
Chris Halsall
GIMPS Status
Factorization using ECM
Mersenne software download mirror
Calculate bit size of factor:
Calculate P-1 probability:
Exponent:
B1:
B2:
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
86
87
88
89
90
91
92
93
94
95
K*B^N+C
*
2
^
N
+
Calculate
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:
force stage1-only P-1 (B1=B2)
Force B1 to be:
-ignore-
=
>=
<=
Calculate
