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
15434899Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 1500000
B2 = 784529460
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2002-06-23Chris Dinsdale72F7CF41D855D3EB3770086
Verified2005-11-27Roy Oswald72F7CF41D855D3EB14903863
History
DateUserTypeResult
2024-07-17Sid & AndyNF-PM1
B1=1500000, B2=784529460
2023-06-19Sid & AndyNF
no factor from 2^72 to 2^73
2021-09-19-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-07SRBaseNF
no factor from 2^70 to 2^71
2021-06-13lycornNF
no factor from 2^69 to 2^70
2018-03-23ramgeisNF
no factor from 2^68 to 2^69
2018-03-23ramgeisNF
no factor from 2^67 to 2^68
2014-02-23NesowaNF
no factor from 2^66 to 2^67
2014-02-23NesowaNF
no factor from 2^65 to 2^66