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
19795759Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 1100000
B2 = 479354610
LL
StatusDateUserResidueShift
Verified2004-07-26David Modzelewski21B2E2BA65DB4D821532262
Verified2008-03-22Yves Bellefeuille21B2E2BA65DB4D829898596
History
DateUserTypeResult
2024-11-29Sid & AndyNF-PM1
B1=1100000, B2=479354610
2021-11-26-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-02-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-13SRBaseNF
no factor from 2^70 to 2^71
2021-03-16James HeinrichNF-PM1
B1=436000, B2=27930000
2019-10-17lycornNF
no factor from 2^69 to 2^70
2017-12-05ramgeisNF
no factor from 2^68 to 2^69
2013-11-04NesowaNF
no factor from 2^67 to 2^68
2013-11-04NesowaNF
no factor from 2^66 to 2^67