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
12507151Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 268
P-1
B1 = 3000000
B2 = 11599205310
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2003-06-17Ars Technica Team Prime RibD9A88C960C51789512425463
Verified2004-10-18Lawrence Cairns-SmithD9A88C960C5178952746763
History
DateUserTypeResult
2024-09-07Sid & AndyNF
no factor from 2^72 to 2^73
2023-02-08Naegi MakotoNF-PM1
B1=3000000, B2=11599205310
2021-12-17LuminescenceNF-PM1
B1=300000, B2=161861700
2021-10-29-Anonymous-NF
no factor from 2^71 to 2^72
2021-08-22SRBaseNF
no factor from 2^70 to 2^71
2021-08-07SRBaseNF
no factor from 2^69 to 2^70
2017-10-25ramgeisNF
no factor from 2^68 to 2^69
2017-01-11Smok_bmv NF
no factor from 2^67 to 2^68
2015-03-21ThaNF
no factor from 2^66 to 2^67
2014-03-28NesowaNF
no factor from 2^65 to 2^66
2013-06-20lycornNF
no factor from 2^64 to 2^65