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
4665047Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 272
TF target 265
P-1
B1 = 4300000
B2 = 11204171550
ECM
DigitsB1Curves
2550000129 / 280
Estimated T-Level: 22.3 ⓘ
LL
StatusDateUserResidueShift
Verified1998-05-08Dean Allison3602A280235AA02F0
Verified2000-01-04Norb Raddatz3602A280235AA02F1660786
History
DateUserTypeResult
2023-03-02Sid & AndyNF-PM1
B1=4300000, B2=11204171550
2021-03-23-Anonymous-NF
no factor from 2^71 to 2^72
2021-03-21-Anonymous-NF
no factor from 2^70 to 2^71
2021-03-21-Anonymous-NF
no factor from 2^69 to 2^70
2021-03-21-Anonymous-NF
no factor from 2^68 to 2^69
2018-10-18chuenkitNF
no factor from 2^67 to 2^68
2018-07-16BloodERazorNF
no factor from 2^66 to 2^67
2018-07-10Ismo LaitelaNF-PM1
B1=1988203, B2=61634303, E=12
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-07-08snme2pm1NF
no factor from 2^65 to 2^66
2015-02-10monstNF
no factor from 2^64 to 2^65
2015-02-09JayderNF
no factor from 2^63 to 2^64
2012-02-17Squeeky_SquirrelNF-PM1
B1=110000, B2=2090000, E=6
2011-12-11GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-07-13markrNF
no factor from 2^61 to 2^62
2009-08-26Carsten KossendeyNF-PM1
B1=25000, B2=381250