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
55025917Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 273
P-1
B1 = 580000
B2 = 12180000
LL
StatusDateUserResidueShift
Verified2012-02-04Stephan Grupp1BA509CB2B3C078843490349
Verified2020-07-14Smok_bmv 1BA509CB2B3C078838369652
History
DateUserTypeResult
2020-07-14Smok_bmv C-LL
1BA509CB2B3C0788
2019-03-18ChuckNF
no factor from 2^73 to 2^74
2016-01-29-Anonymous-NF
no factor from 2^72 to 2^73
2015-12-18-Anonymous-NF
no factor from 2^71 to 2^72
2012-02-04Stephan GruppC-LL
1BA509CB2B3C0788
2012-01-03Stephan GruppNF-PM1
B1=580000, B2=12180000
2011-08-29Tom DuellNF
no factor from 2^70 to 2^71
2011-05-24GrunwalderGIMPNF
no factor from 2^69 to 2^70
2011-04-01UngelovendeNF
no factor from 2^68 to 2^69
2009-05-16BroadoakMathsClub1NF
no factor from 2^67 to 2^68
2009-03-17W. OleinikNF
no factor from 2^66 to 2^67
2009-03-15W. OleinikNF
no factor from 2^65 to 2^66
2009-03-13a97marbrNF
no factor from 2^64 to 2^65
2008-07-02-Anonymous-NF
no factor to 2^64