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:










MnStatusDetails
1006721Composite: proven not-prime with both PRP and Lucas-Lehmer tests
TF
No factors below 271
TF target 260
TF below 2^97 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 32000000
B2 = 826602987210
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000177 / 1566
Estimated T-Level: 30.6
LL
StatusDateUserResidueShift
VerifiedDavid Slowinski1DC50
VerifiedGary LowderFF3ABDAC84F77DC50
VerifiedPaul Victor NovareseFF3ABDAC84F77DC50
Verified2010-01-01Rob_DeeFF3ABDAC84F77DC5200951
Verified2016-06-01MadPooFF3ABDAC84F77DC5734509
PRP
StatusDateUserResidueShiftTypeBase
Verified2020-10-31Ethan O'Connor59C2655B3FD5392D013
Verified2025-09-01Kriesel59C2655B3FD5392D013
History
DateUserTypeResult
2025-09-17JossNF-PP1
Start=2/7, B1=1000000
2025-09-01RainchillCERT
PRP Certification
CERT proof power = 6
Proof certified good
2025-09-01KrieselC-PRP
59C2655B3FD5392D
PRP proof power = 6
PRP: Verified
Proof certified good
2022-06-03axnNF-PM1
B1=32000000, B2=826602987210
2022-02-18LordJuliusNF-PM1
B1=10000000, B2=84188114010
2022-01-30NumberwangNF-PM1
B1=105000, B2=2525853330
2021-11-08NumberwangNF-PM1
B1=72000, B2=3137000
2020-10-31Chun sung sooCERT
PRP Certification
CERT proof power = 8
Proof certified good
2020-10-31Ethan O'ConnorC-PRP
59C2655B3FD5392D
PRP proof power = 8
PRP: Verified
Proof certified good
2018-11-19JossNF-PM1
B1=5020000, B2=202350921
2018-06-21JossNF-PM1
B1=5020000, B2=201344200, E=12
2018-05-01JossNF-PM1
B1=5020000, B2=100672100, E=12
2018-02-22JossNF-PM1
B1=5020000, B2=81600000, E=12
2018-02-22JossNF-PM1
B1=5020000, B2=40800000, E=12
2016-07-27JossNF-PM1
B1=5000000, B2=40800000, E=12
2016-06-29JossNF-PM1
B1=5000000, B2=20400000, E=12
2016-06-28JossNF-PM1
B1=5000000, B2=10200000, E=6
2016-06-01MadPooC-LL
FF3ABDAC84F77DC5
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2014-04-01Never Odd Or EvenNF
no factor from 2^70 to 2^71
2013-07-25Never Odd Or EvenNF
no factor from 2^69 to 2^70
2013-07-25Never Odd Or EvenNF
no factor from 2^68 to 2^69
2013-03-16Never Odd Or EvenNF
no factor from 2^67 to 2^68
2013-03-16Never Odd Or EvenNF
no factor from 2^66 to 2^67
2013-03-16Never Odd Or EvenNF
no factor from 2^65 to 2^66
2012-03-22bcp19NF
no factor from 2^64 to 2^65
2010-10-31Michael CNF
no factor from 2^63 to 2^64
2010-10-31Michael CNF
no factor from 2^62 to 2^63
2010-10-31Michael CNF
no factor from 2^61 to 2^62
2010-07-30Rob_DeeNF-PM1
B1=5000000, B2=5100000
2010-07-29Rob_DeeNF-PM1
B1=4800000, B2=5000000
2010-07-28Rob_DeeNF-PM1
B1=4600000, B2=4800000
2010-07-27Rob_DeeNF-PM1
B1=4400000, B2=4600000
2010-07-26Rob_DeeNF-PM1
B1=4200000, B2=4400000
2010-07-25Rob_DeeNF-PM1
B1=4000000, B2=4200000
2010-07-24Rob_DeeNF-PM1
B1=3800000, B2=4000000
2010-07-23Rob_DeeNF-PM1
B1=3600000, B2=3800000
2010-07-22Rob_DeeNF-PM1
B1=3400000, B2=3600000
2010-07-21Rob_DeeNF-PM1
B1=3200000, B2=3400000
2010-07-20Rob_DeeNF-PM1
B1=3000000, B2=3200000
2010-07-19Rob_DeeNF-PM1
B1=2800000, B2=3000000
2010-07-18Rob_DeeNF-PM1
B1=2600000, B2=2800000
2010-07-17Rob_DeeNF-PM1
B1=2400000, B2=2600000
2010-07-16Rob_DeeNF-PM1
B1=2200000, B2=2400000
2010-07-15Rob_DeeNF-PM1
B1=2000000, B2=2200000
2010-07-14Rob_DeeNF-PM1
B1=1800000, B2=2000000
2010-07-13Rob_DeeNF-PM1
B1=1600000, B2=1800000
2010-07-12Rob_DeeNF-PM1
B1=1400000, B2=1600000
2010-07-11Rob_DeeNF-PM1
B1=1200000, B2=1400000
2010-01-01Rob_DeeC-LL
FF3ABDAC84F77DC5
2009-02-15Sturle SundeNF
no factor from 2^60 to 2^61