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
4893527Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 272
TF target 265
P-1
B1 = 4000000
B2 = 10397372700
ECM
DigitsB1Curves
255000092 / 280
Estimated T-Level: 21.6 ⓘ
LL
StatusDateUserResidueShift
Verified1998-10-11Matthew Collinge3633C379D7F30B760
Verified2000-03-08Scott McGlynn3633C379D7F30B76479352
History
DateUserTypeResult
2024-11-05onlinegameNF
no factor from 2^71 to 2^72
2023-04-02Sid & AndyNF-PM1
B1=4000000, B2=10397372700
2020-12-04-Anonymous-NF
no factor from 2^70 to 2^71
2018-06-04YxinityNF
no factor from 2^69 to 2^70
2018-06-04YxinityNF
no factor from 2^68 to 2^69
2018-05-08ramgeisNF
no factor from 2^67 to 2^68
2017-10-31YxinityNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^1 to 2^61
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-07-23snme2pm1NF
no factor from 2^65 to 2^66
2015-01-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-01-07VictordeHollanderNF
no factor from 2^63 to 2^64
2014-01-14David CampeauNF-PM1
B1=420000, B2=10920000, E=12
2011-09-28GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-17garoNF
no factor from 2^61 to 2^62
2009-08-18Carsten KossendeyNF-PM1
B1=30000, B2=435000