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
16401761Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 269
P-1
B1 = 1250000
B2 = 3134848080
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Bad2002-09-07bill trousdale261419821636204B9379562
Verified2003-08-25Brian Glover7D4AE89F3FDB1C2A11195784
Verified2006-03-01Eric Bravick7D4AE89F3FDB1C2A3277530
History
DateUserTypeResult
2024-06-29kurlyNF-PM1
B1=1250000, B2=3134848080
2022-01-16TheJudgerNF
no factor from 2^73 to 2^74
2022-01-16TheJudgerNF
no factor from 2^72 to 2^73
2021-09-13-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-08SRBaseNF
no factor from 2^70 to 2^71
2021-04-12lycornNF
no factor from 2^69 to 2^70
2018-03-27ramgeisNF
no factor from 2^68 to 2^69
2018-03-27ramgeisNF
no factor from 2^67 to 2^68
2016-03-16Mark RoseNF
no factor from 2^65 to 2^66
2014-08-28NesowaNF
no factor from 2^66 to 2^67