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
6148603TF
No factors below 272
TF target 266
P-1
B1 = 3900000
B2 = 59120811750
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
LL
StatusDateUserResidueShift
Verified1999-01-29Hugh SconyersC44F4AC0884F8BE60
Verified2001-07-29Lawrence Cairns-SmithC44F4AC0884F8BE65665595
History
DateUserTypeResult
2023-04-25JacobZNF-PM1
B1=3900000, B2=59120811750
2022-01-19LaurVNF-PM1
B1=1993761, B2=326786460
2022-01-08LaurVNF-PM1
B1=2203607
2021-10-15SRBaseNF
no factor from 2^71 to 2^72
2021-08-10SRBaseNF
no factor from 2^70 to 2^71
2020-11-18takahashiNF
no factor from 2^69 to 2^70
2020-03-23takahashiNF
no factor from 2^68 to 2^69
2019-08-02takahashiNF-PM1
B1=600000, B2=12000000, E=12
2018-05-30ramgeisNF
no factor from 2^67 to 2^68
2016-04-08Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-10-08Bruno VictalNF
no factor from 2^65 to 2^66
2014-09-18monstNF
no factor from 2^64 to 2^65
2014-09-10NesowaNF
no factor from 2^63 to 2^64
2013-03-02Squeeky_SquirrelNF-PM1
B1=115000, B2=2242500, E=6
2009-06-14Carsten KossendeyNF-PM1
B1=30000, B2=450000