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
8903249Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 268
P-1
B1 = 3500000
B2 = 2616217890
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1 ⓘ
LL
StatusDateUserResidueShift
Bad2000-02-23David Carson841965C5A2814E6A8224524
Verified2001-07-17Xiao Wu38671691BB2295D82600025
Verified2003-02-24Christopher Robert Jaquez38671691BB2295D87138562
History
DateUserTypeResult
2022-08-05Cong ShengzhuoNF-PM1
B1=3500000, B2=2616217890
2021-12-11-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-10SRBaseNF
no factor from 2^71 to 2^72
2021-08-29SRBaseNF
no factor from 2^70 to 2^71
2021-08-20SRBaseNF
no factor from 2^69 to 2^70
2019-11-27Aaron HavilandNF-PM1
B1=325000, B2=7068750, e=12
2019-11-18mnd9NF
no factor from 2^68 to 2^69
2018-03-23monstNF
no factor from 2^67 to 2^68
2016-03-10snme2pm1NF
no factor from 2^66 to 2^67
2015-05-17VictordeHollanderNF
no factor from 2^65 to 2^66
2014-01-11lycornNF
no factor from 2^64 to 2^65