Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
1098667Composite: proven not-prime with both PRP and Lucas-Lehmer tests
TF
No factors below 271
TF target 260
TF below 2^81 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 27000000
B2 = 69228487020
ECM
DigitsB1Curves
2550000280 / 280
3025000099 / 640
Estimated T-Level: 25.8
LL
StatusDateUserResidueShift
VerifiedDavid Slowinski7020
VerifiedLaurent Hodges7E4680ED97D267020
Verified2002-04-07S574837E4680ED97D26702981957
Verified2016-06-01MadPoo7E4680ED97D267021078814
PRP
StatusDateUserResidueShiftTypeBase
Verified2025-08-02kkmrkkblmbrbk4B093F9BEC416908108638113
Verified2025-09-01Kriesel4B093F9BEC416908013
History
DateUserTypeResult
2025-09-02S00030CERT
PRP Certification
CERT proof power = 6
Proof certified good
2025-09-01KrieselC-PRP
4B093F9BEC416908
PRP proof power = 6
PRP: Verified
Proof certified good
2025-08-02Fabrice BelletCERT
PRP Certification
CERT proof power = 6
Proof certified good
2025-08-02kkmrkkblmbrbkC-PRP
4B093F9BEC416908
PRP proof power = 6
PRP: Verified
Proof certified good
2022-03-23axnNF-PM1
B1=27000000, B2=69228487020
2018-11-13JossNF-PM1
B1=1098667, B2=131840040, E=12
2018-04-12JossNF-PM1
B1=1098667, B2=109866700, E=12
2016-07-27Bruno VictalNF-PM1
B1=2500000, B2=62500000, E=12
2016-07-24Bruno VictalNF-PM1
B1=2500000, B2=62500000, E=12
2016-06-12JossNF-PM1
B1=843321, B2=30000000, E=12
2016-06-01MadPooC-LL
7E4680ED97D26702
2016-03-29JossNF-PM1
B1=843321
2016-03-25JossNF-PM1
B1=702768
2016-02-23Mark RoseNF
no factor from 2^57 to 2^60
2015-10-16Bruno VictalNF-PM1
B1=500000, B2=15000000, E=12
2014-11-10JossNF-PM1
B1=316838
2014-08-21JossNF-PM1
B1=258419
2014-04-01Never Odd Or EvenNF
no factor from 2^70 to 2^71
2014-01-29Never Odd Or EvenNF
no factor from 2^69 to 2^70
2014-01-29Never Odd Or EvenNF
no factor from 2^68 to 2^69
2014-01-29Never Odd Or EvenNF
no factor from 2^67 to 2^68
2014-01-29Never Odd Or EvenNF
no factor from 2^66 to 2^67
2014-01-29Never Odd Or EvenNF
no factor from 2^65 to 2^66
2013-10-13David CampeauNF
no factor from 2^64 to 2^65
2013-05-16Never Odd Or EvenNF
no factor from 2^63 to 2^64
2012-10-07dbaughNF
no factor from 2^62 to 2^63
2012-01-04bcp19NF-PM1
B1=200000, B2=10000000, E=12
2010-11-19Michael CNF
no factor from 2^61 to 2^62
2009-02-26Sturle SundeNF
no factor from 2^60 to 2^61