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Look up single exponent:
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List of Mersenne Prime numbers
GIMPS progress visualization
Look up exponent / factor
Prime95 benchmarks
Calculate CPU Credit for any assignment
Estimated GPU trial-factoring performance
Estimated GPU PRP performance
P-1 probability calculator
P+1 Factors
Factors missed by P-1
Factors missed by TF
Exponents with gaps in TF
Exponents with less TF than expected
Exponents with the most known factors
P-1 factors found via Brent-Suyama
Gerbicz probably-PRP
P-1 bounds on unfactored unverified
Smoothest P-1 factors
Biggest P-1 / ECM factors
Recent factors by user
Top TF factor finding users
Top discoverers by factor size
Recently discovered factors by size
TJAOI progress
SRBase factor distribution
TWOK progress
P-1 vs PRP at wavefront
PRP vs TF bitlevel
LL tests done per day
CERT tests done per day
Probably-Prime (PRP) cofactors
Trial-factoring assignment >1000M (tf1G)
Operation Billion Digits (OBD)
Worktodo balancer
Split large assignment blocks to workers
Sort Strings by Length
Worktodo skip known-factor assignments
P-1 to TF worktodo rewriter
TF worktodo bit level split
TF worktodo bit level merge
TF worktodo filter for previous ECM/TF effort
Factoring Beyond First Factor
LL-DC priority assignments
mfactor/factor5 results to JSON converter
P-1 effort distribution
TF distribution for factored exponents
Exponents that were poorly P-1 factored
Factor discovery date lookup
FactorDB composite size distribution history
YAFU JSON factors to FactorDB converter
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 decimal digits in Mersenne number
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
Donations:
Donate to MersenneForum + mersenne.ca
Donate to mersenne.org / GIMPS
Calculate bit size of factor:
Benchmarks
»
AMD
»
Opteron X4
Please do not spider these pages to gather CPU data,
the data is freely available:
CPU specification data in JSON format
(6170 models, ~4MB, updated
2026-03-29
)
Please do not spider these pages to gather benchmark
data, it is freely available:
Raw benchmark data (
13MB
, updated
2026-04-12
)
×
AMD Opteron 1352
AMD Opteron 1354
AMD Opteron 1356
AMD Opteron 1381
AMD Opteron 1385
AMD Opteron 1389
AMD Opteron 2344 HE
AMD Opteron 2346 HE
AMD Opteron 2347
AMD Opteron 2347 HE
AMD Opteron 2350
AMD Opteron 2350 HE
AMD Opteron 2352
AMD Opteron 2354
AMD Opteron 2356
AMD Opteron 2360 SE
AMD Opteron 2372 HE
AMD Opteron 2373 EE
AMD Opteron 2374 HE
AMD Opteron 2376
AMD Opteron 2376 HE
AMD Opteron 2377 EE
AMD Opteron 2378
AMD Opteron 2379 HE
AMD Opteron 2381 HE
AMD Opteron 2382
AMD Opteron 2384
AMD Opteron 2387
AMD Opteron 2389
AMD Opteron 2393 SE
AMD Opteron 8346 HE
AMD Opteron 8347
AMD Opteron 8347 HE
AMD Opteron 8350
AMD Opteron 8354
AMD Opteron 8356
AMD Opteron 8358 SE
AMD Opteron 8360 SE
AMD Opteron 8376 HE
AMD Opteron 8378
AMD Opteron 8380
AMD Opteron 8381 HE
AMD Opteron 8384
AMD Opteron 8389
AMD Opteron 8393 SE