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
2003213Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 272
TF target 262
TF below 2^81 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 14600000
B2 = 44880135300
ECM
DigitsB1Curves
2550000280 / 280
30250000106 / 640
Estimated T-Level: 25.8 ⓘ
LL
StatusDateUserResidueShift
VerifiedMark GrennanDB463F164DF228F90
Verified1999-01-17Ethan HansenDB463F164DF228F9475553
Verified2015-10-29MadPooDB463F164DF228F91437135
History
DateUserTypeResult
2023-07-31Sid & AndyNF-PM1
B1=14600000, B2=44880135300
2023-07-07JossNF-PM1
B1=1000000, B2=5360349540
2023-02-03JossNF-PM1
B1=2003213, B2=2303478870
2022-12-11JossNF-PM1
B1=2003213, B2=710990280
2020-09-30Bruno VictalNF-PM1
B1=10000000, B2=350000000
2019-12-03mikrNF
no factor from 2^71 to 2^72
2018-12-03mikrNF-PM1
B1=4000000, B2=200000000, E=12
2018-07-03JossNF-PM1
B1=2003213, B2=80128520, E=12
2018-05-25JossNF-PM1
B1=2003213, B2=4006426, E=6
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-12-18ramgeisNF
no factor from 2^70 to 2^71
2015-10-29MadPooC-LL
DB463F164DF228F9
2015-08-23ramgeisNF
no factor from 2^69 to 2^70
2015-08-23ramgeisNF
no factor from 2^68 to 2^69
2015-03-09BloodIceNF
no factor from 2^67 to 2^68
2015-03-08BloodIceNF
no factor from 2^66 to 2^67
2015-03-08BloodIceNF
no factor from 2^65 to 2^66
2015-03-08BloodIceNF
no factor from 2^64 to 2^65
2015-03-08BloodIceNF
no factor from 2^63 to 2^64
2013-10-07David CampeauNF-PM1
B1=580000, B2=15080000, E=12
2013-02-05dbaughNF
no factor from 2^62 to 2^63
2011-12-23Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-11-23JossNF-PM1
B1=200321
2009-01-02Sturle SundeNF
no factor from 2^60 to 2^61