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
20315513Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 1000000
B2 = 30000000
LL
StatusDateUserResidueShift
Verified2003-11-16Matt Westwood58C6FCEDF443550216530283
Verified2008-04-25Ars Technica Team Prime Rib58C6FCEDF443550213570578
History
DateUserTypeResult
2021-11-27LuminescenceNF-PM1
B1=1000000, B2=30000000
2021-11-19-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-01-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-13SRBaseNF
no factor from 2^70 to 2^71
2018-03-11ramgeisNF
no factor from 2^69 to 2^70
2017-11-05VictordeHollanderNF
no factor from 2^68 to 2^69
2017-05-01ramgeisNF
no factor from 2^67 to 2^68
2015-02-17NRNF
no factor from 2^66 to 2^67