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
2070287Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 269
TF target 262
TF below 2^82 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 14400000
B2 = 48797128380
ECM
DigitsB1Curves
2550000280 / 280
30250000165 / 640
Estimated T-Level: 26.3 ⓘ
LL
StatusDateUserResidueShift
VerifiedGerardo CisnerosEE70
VerifiedBruce Lum2C0B4074B569EEE70
Verified2002-06-02S574832C0B4074B569EEE71941125
Verified2017-05-21kkmrkkblmbrbk2C0B4074B569EEE7720469
History
DateUserTypeResult
2023-08-13Sid & AndyNF-PM1
B1=14400000, B2=48797128380
2023-07-06JossNF-PM1
B1=1000000, B2=4725280560
2023-03-10JossNF-PM1
B1=1000000, B2=2049006960
2023-01-29JossNF-PM1
B1=1000000, B2=710870160
2021-08-05TJAOINF
no factor from 2^68 to 2^69
2019-08-24mikrNF-PM1
B1=4000000, B2=200000000, E=12
2019-03-28chuenkitNF
no factor from 2^67 to 2^68
2017-05-21kkmrkkblmbrbkC-LL
2C0B4074B569EEE7
2016-09-07Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-11-04ramgeisNF
no factor from 2^65 to 2^66
2015-03-28VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-28VictordeHollanderNF
no factor from 2^63 to 2^64
2013-11-12c10ck3rNF-PM1
B1=500000, B2=10000000, E=12
2013-02-21dbaughNF
no factor from 2^62 to 2^63
2012-03-16Sebastian HornbostelNF
no factor from 2^61 to 2^62
2009-01-02Sturle SundeNF
no factor from 2^60 to 2^61