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
21759433Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 269
P-1
B1 = 450000
B2 = 9500000
LL
StatusDateUserResidueShift
Bad2004-04-09Nathan CorwinCB244516F08C36E720397584
Verified2009-07-07Steven Noonan633BA6001647384A2095740
Verified2009-07-14HighPriceRanch633BA6001647384A16413265
History
DateUserTypeResult
2021-10-02TheJudgerNF
no factor from 2^73 to 2^74
2021-09-06TheJudgerNF
no factor from 2^72 to 2^73
2021-09-06TheJudgerNF
no factor from 2^71 to 2^72
2021-09-06TheJudgerNF
no factor from 2^70 to 2^71
2018-04-15ramgeisNF
no factor from 2^69 to 2^70
2017-11-28VictordeHollanderNF
no factor from 2^68 to 2^69
2017-05-28ramgeisNF
no factor from 2^67 to 2^68
2015-07-13riccardo ubertiNF-PM1
B1=450000, B2=9500000, E=12
2009-07-14HighPriceRanchC-LL
633BA6001647384A
2009-07-07Steven NoonanC-LL
633BA6001647384A