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
12294563Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 268
P-1
B1 = 1000000
B2 = 1056952050
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2001-11-24Marc Honey866AF6BE4AF7F6472026876
Verified2004-07-02Marc Getty866AF6BE4AF7F647644330
History
DateUserTypeResult
2024-11-02Andrew BNF
no factor from 2^72 to 2^73
2021-12-23LuminescenceNF-PM1
B1=1000000, B2=1056952050
2021-10-29-Anonymous-NF
no factor from 2^71 to 2^72
2021-08-01ZacHFXNF
no factor from 2^70 to 2^71
2021-08-01ZacHFXNF
no factor from 2^69 to 2^70
2018-04-30riccardo ubertiNF-PM1
B1=430000, B2=8500000, E=12
2017-11-03ramgeisNF
no factor from 2^68 to 2^69
2015-07-25ThaNF
no factor from 2^67 to 2^68
2015-03-08ThaNF
no factor from 2^66 to 2^67
2013-09-29NesowaNF
no factor from 2^65 to 2^66
2013-08-01lycornNF
no factor from 2^64 to 2^65