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
13770461Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 1600000
B2 = 1604717400
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
BadacterAG5FA2E4C032E19DBA0
Verified2005-02-12Sturle Sunde4F640459FCCA48335027255
Verified2005-04-26Farshad Bashir4F640459FCCA483310126209
History
DateUserTypeResult
2023-10-28Naegi MakotoNF
no factor from 2^72 to 2^73
2023-07-27nordiNF-PM1
B1=1600000, B2=1604717400
2023-03-19nordiNF-PM1
B1=1600000
2021-10-01Jon PaceNF
no factor from 2^71 to 2^72
2021-09-05SRBaseNF
no factor from 2^70 to 2^71
2021-08-08SRBaseNF
no factor from 2^69 to 2^70
2018-01-14ramgeisNF
no factor from 2^68 to 2^69
2017-12-23-Anonymous-NF
no factor from 2^67 to 2^68
2015-08-19NesowaNF
no factor from 2^66 to 2^67
2015-06-28Sid & AndyNF-PM1
B1=155000, B2=2983750, E=6
2014-07-02NesowaNF
no factor from 2^65 to 2^66