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
330313Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 268
TF target 244
TF below 2^106 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 65000000
B2 = 11677534899030
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001027 / 1566
Estimated T-Level: 33.3 ⓘ
LL
StatusDateUserResidueShift
VerifiedDavid Slowinski17F80
VerifiedUnknown17F80
VerifiedGuillermo Ballester Valor7D13A40A78DE17F80
VerifiedEivind Triel7D13A40A78DE17F8314436
Verified2002-01-22Dennis Pope7D13A40A78DE17F8179188
History
DateUserTypeResult
2023-05-07Stef42NF-PM1
B1=65000000, B2=11677534899030
2023-02-02JossNF-PM1
B1=1000000, B2=27892134270
2023-01-10masserNF-PP1
Start=6/5, B1=20000000, B2=620000000
2023-01-05masserNF-PP1
Start=185/61, B1=20000000, B2=620000000
2023-01-01masserNF-PP1
Start=2/7, B1=20000000, B2=620000000
2022-06-29Gordon SpenceNF
no factor from 2^67 to 2^68
2022-06-01LordJuliusNF
no factor from 2^66 to 2^67
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2019-11-25Gordon SpenceNF
no factor from 2^65 to 2^66
2018-01-27Gordon SpenceNF
no factor from 2^64 to 2^65
2016-07-14mikrNF-PM1
B1=60000000, B2=3000000000, E=12
2015-12-09Gordon SpenceNF
no factor from 2^63 to 2^64
2015-12-09Gordon SpenceNF
no factor from 2^62 to 2^63
2015-07-23NRNF
no factor from 2^61 to 2^62
2013-03-30Sid & AndyNF
no factor from 2^60 to 2^61
2012-01-08alpertronNF-PM1
B1=10000000, B2=200000000, E=12
2011-08-06JossNF-PM1
B1=1396982
2009-01-24Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-29Sturle SundeNF
no factor from 2^58 to 2^59