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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
15883453Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 1500000
B2 = 1144725120
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2002-07-20Binary DigitsC7A1F8F164D49A7815204873
Verified2006-07-25John GilmoreC7A1F8F164D49A783294129
History
DateUserTypeResult
2024-07-10Sid & AndyNF-PM1
B1=1500000, B2=1144725120
2021-11-28-Anonymous-NF
no factor from 2^72 to 2^73
2021-09-14-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-08SRBaseNF
no factor from 2^70 to 2^71
2021-05-22lycornNF
no factor from 2^69 to 2^70
2018-02-25ramgeisNF
no factor from 2^68 to 2^69
2018-02-25ramgeisNF
no factor from 2^67 to 2^68
2016-03-16Mark RoseNF
no factor from 2^65 to 2^66
2014-07-20NesowaNF
no factor from 2^66 to 2^67