Marin Mersenne 2^P-1
Username
Password
Forgot password?
White
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
19363621Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 1500000
B2 = 1368802050
LL
StatusDateUserResidueShift
Verified2003-09-09Jose Manuel GarciaADF3749129C84FF012080515
Verified2007-09-13Arthur DelaruelleADF3749129C84FF07814931
History
DateUserTypeResult
2024-09-28Naegi MakotoNF-PM1
B1=1500000, B2=1368802050
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
2019-12-19lycornNF
no factor from 2^69 to 2^70
2017-11-26ramgeisNF
no factor from 2^68 to 2^69
2014-05-29NesowaNF
no factor from 2^67 to 2^68
2014-05-29NesowaNF
no factor from 2^66 to 2^67