Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
1012379
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 271
TF target 260
Factored
FactorDigitsBitsDate
605995235449851766608887823435131102.32025-01-27 10:04:08
ECM
DigitsB1Curves
2550000280 / 280
30250000261 / 640
Estimated T-Level: 27.0
TF below 2^85 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
FactoredKen Kriesel3EE2CBD8FB4AB8E80Windows,Prime95,v13,(aka WP1)
FactoredSimon Burge3EE2CBD8FB4AB8E80Crandall,(aka X)
Factored2003-06-17Brian J. Beesley3EE2CBD8FB4AB8E8380889Windows,Prime95,v22,(aka WY1)
Factored2010-06-20Rob_Dee3EE2CBD8FB4AB8E8602027Windows,Prime95,v25.8,build 5
PRP
StatusProofDateUserResidueShiftTypeBase
Factored
Certified Good
Power=6
2025-09-01KrieselC9A27D4C7DD8BAF1013
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
Certified Good
2025-01-27NStormC9A27D4C7DD8BAF1127786753
History
DateUserTypeResult
2025-09-01mikejCERT
Proof certified good
2025-09-01KrieselC-PRPC9A27D4C7DD8BAF1
Proof Certified Good

Proof Power: 6

2025-01-27PappyCERT
Proof certified good
2025-01-27NStormC-PRPM1012379/6059952354498517666088878234351 : C9A27D4C7DD8BAF1
Proof Certified Good

Proof Power: 6

2025-01-27NStormF-ECMFactor: 6059952354498517666088878234351 / ECM curve 32, B1=250000, B2=367552185, Edwards Sigma=362125645820342
2022-06-05axnNF-PM1B1=32000000, B2=756203658210
2022-01-30NumberwangNF-PM1B1=106000, B2=2525853330
2018-11-19JossNF-PM1B1=5020000, B2=203488179
2018-10-21JossNF-PM1B1=5020000, B2=202475800, E=12
2018-04-29JossNF-PM1B1=5020000, B2=101237900, E=12
2018-02-23JossNF-PM1B1=5020000, B2=89760000, E=12
2018-02-23JossNF-PM1B1=5020000, B2=44880000, E=12
2016-09-30JossNF-PM1B1=5000000, B2=44880000, E=6
2016-08-28JossNF-PM1B1=5000000, B2=40800000, E=12
2016-08-10JossNF-PM1B1=5000000, B2=20400000, E=12
2016-07-09JossNF-PM1B1=5000000, B2=10200000, E=6
2016-02-23Mark RoseNFno factor TF: 58-60
2014-04-01Never Odd Or EvenNFno factor TF: 70-71
2013-05-24Never Odd Or EvenNFno factor TF: 69-70
2013-05-24Never Odd Or EvenNFno factor TF: 68-69
2013-03-22Never Odd Or EvenNFno factor TF: 67-68
2013-03-22Never Odd Or EvenNFno factor TF: 66-67
2013-03-22Never Odd Or EvenNFno factor TF: 65-66
2011-05-07megavinkNFno factor TF: 64-65
2010-12-13Rob_DeeNF-PM1B1=5000000, B2=5100000
2010-12-12Rob_DeeNF-PM1B1=4800000, B2=5000000
2010-12-11Rob_DeeNF-PM1B1=4600000, B2=4800000
2010-12-10Rob_DeeNF-PM1B1=4400000, B2=4600000
2010-12-09Rob_DeeNF-PM1B1=4200000, B2=4400000
2010-12-08Rob_DeeNF-PM1B1=4000000, B2=4200000
2010-12-07Rob_DeeNF-PM1B1=3800000, B2=4000000
2010-12-06Rob_DeeNF-PM1B1=3600000, B2=3800000
2010-12-05Rob_DeeNF-PM1B1=3400000, B2=3600000
2010-12-04Rob_DeeNF-PM1B1=3200000, B2=3400000
2010-12-03Rob_DeeNF-PM1B1=3000000, B2=3200000
2010-12-02Rob_DeeNF-PM1B1=2800000, B2=3000000
2010-12-01Rob_DeeNF-PM1B1=2600000, B2=2800000
2010-11-30Rob_DeeNF-PM1B1=2400000, B2=2600000
2010-11-29Rob_DeeNF-PM1B1=2200000, B2=2400000
2010-11-28Rob_DeeNF-PM1B1=2000000, B2=2200000
2010-11-27Rob_DeeNF-PM1B1=1800000, B2=2000000
2010-11-26Rob_DeeNF-PM1B1=1600000, B2=1800000
2010-11-25Rob_DeeNF-PM1B1=1400000, B2=1600000
2010-11-24Rob_DeeNF-PM1B1=1200000, B2=1400000
2010-11-23Rob_DeeNF-PM1B1=1000000, B2=1200000
2010-11-22Rob_DeeNF-PM1B1=800000, B2=1000000
2010-11-21Rob_DeeNF-PM1B1=600000, B2=800000
2010-11-20Rob_DeeNF-PM1B1=400000, B2=600000
2010-11-09Michael CNFno factor TF: 63-64
2010-11-09Michael CNFno factor TF: 62-63
2010-11-09Michael CNFno factor TF: 61-62
2010-06-20Rob_DeeC-LL3EE2CBD8FB4AB8E8
2009-02-19Sturle SundeNFno factor TF: 60-61
2003-12-13-anonymous-NF-PM1B1=15000, B2=198750
2003-11-16eteoNF-PM1B1=200000, B2=2000000, E=6
2003-11-16-anonymous-NF-PM1B1=2048, B2=204800
2003-11-08-anonymous-NF-PM1B1=15000, B2=198750
2003-06-17-anonymous-C-LL3EE2CBD8FB4AB8E8
2003-01-09-anonymous-NFno factor TF: 1-58
2002-10-07JossNF-PM1B1=32768
2002-09-22JossNF-PM1B1=27000
2002-09-14JossNF-PM1B1=26000, B2=26000
2002-08-17JossNF-PM1B1=13000, B2=13000
2002-08-17JossNF-PM1B1=12000, B2=12000
2002-08-17JossNF-PM1B1=15000, B2=15000
2002-08-17JossNF-PM1B1=14000, B2=14000
2002-08-17JossNF-PM1B1=11000, B2=11000
2001-10-13-anonymous-NFno factor TF: 1-57
2001-09-30-anonymous-NF-PM1B1=10000, B2=127500