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
15100567Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 1500000
B2 = 4336061730
ECM
DigitsB1Curves
255000014 / 280
Estimated T-Level: 20.3 ⓘ
LL
StatusDateUserResidueShift
Verified2002-04-14Jose Gaspar Ruas Filho4703DA6EF1FFC07412100614
Verified2005-09-22Robert Tjia4703DA6EF1FFC0745839376
History
DateUserTypeResult
2023-07-10Naegi MakotoNF
no factor from 2^72 to 2^73
2022-03-10LuminescenceNF-PM1
B1=1500000, B2=4336061730
2022-02-14ATHNF-PP1
Start=2/7, B1=1000000, B2=29000000
2021-10-15-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-02SRBaseNF
no factor from 2^70 to 2^71
2021-06-27lycornNF
no factor from 2^69 to 2^70
2017-10-08ramgeisNF
no factor from 2^68 to 2^69
2016-11-04mikrNF
no factor from 2^67 to 2^68
2014-05-14NesowaNF
no factor from 2^66 to 2^67
2014-05-14NesowaNF
no factor from 2^65 to 2^66