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
12377Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 266
TF target 244
TF below 2^168 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 1000000000000
B2 = 1400138873880026280
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000016615 / 40830
Estimated T-Level: 52.0 ⓘ
LL
StatusDateUserResidueShift
VerifiedUnknown631A0
VerifiedGeorge Woltman8091B2AEAEAA631A0
VerifiedBrian J. Beesley8091B2AEAEAA631A0
Verified2015-04-11MadPoo8091B2AEAEAA631A7810
History
DateUserTypeResult
2023-08-22masserNF-PP1
Start=6/5, B1=640000000, B2=114560000000
2023-07-09masserNF-PP1
Start=168/19, B1=640000000, B2=25600000000
2022-10-29-Anonymous-NF-PM1
B1=1000000000000, B2=1400138873880026280
2022-03-16-Anonymous-NF-PM1
B1=100000000000, B2=100013732677278420
2021-10-24Ruslan BorisovNF
no factor from 2^65 to 2^66
2021-05-09ATHNF-PP1
Start=2/7, B1=1000000000, B2=241000000000
2019-03-27Anton RepkoNF
no factor from 2^64 to 2^65
2018-10-15snme2pm1NF
no factor from 2^63 to 2^64
2018-07-08James HintzNF-PM1
B1=25861023105, B2=1939576732875, E=12
2016-09-29Sid & AndyNF
no factor from 2^62 to 2^63
2016-02-23LaurVNF
no factor from 2^57 to 2^58
2015-09-08Sid & AndyNF
no factor from 2^61 to 2^62
2015-04-11MadPooC-LL
8091B2AEAEAA631A
2013-02-01bcp19NF-PM1
B1=10000000000, B2=100000000000, E=12
2012-11-22bcp19NF
no factor from 2^60 to 2^61
2012-10-12JossNF-PM1
B1=745415543
2011-05-13JossNF-PM1
B1=400000000
2010-07-11George WoltmanNF
no factor from 2^59 to 2^60
2010-07-11George WoltmanNF
no factor from 2^58 to 2^59