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
13985009Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 2000000
B2 = 1656047250
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
VerifiedErnst W. MayerC343EA251E3F08E30
Verified2005-03-20Ars Technica Team Prime RibC343EA251E3F08E313227940
History
DateUserTypeResult
2023-12-16nordiNF-PM1
B1=2000000, B2=1656047250
2023-11-20nordiNF-PM1
B1=2000000
2023-09-14Sid & AndyNF
no factor from 2^72 to 2^73
2021-10-23-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-05SRBaseNF
no factor from 2^70 to 2^71
2021-08-09SRBaseNF
no factor from 2^69 to 2^70
2018-01-07ramgeisNF
no factor from 2^68 to 2^69
2017-12-22-Anonymous-NF
no factor from 2^67 to 2^68
2017-02-07ThaNF-PM1
B1=300000, B2=6000000, E=12
2015-09-20NesowaNF
no factor from 2^66 to 2^67
2014-07-15NesowaNF
no factor from 2^65 to 2^66