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
21317TF
No factors below 266
TF target 244
TF below 2^148 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 40000000000
B2 = 16387889450983050
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000003960 / 16550
Estimated T-Level: 46.2 ⓘ
LL
StatusDateUserResidueShift
VerifiedUnknown6C290
VerifiedGeorge Woltman48604C2FF85BEC290
VerifiedBrian J. Beesley48604C2FF85BEC290
Verified2015-04-11MadPoo48604C2FF85BEC292573
History
DateUserTypeResult
2023-08-19masserNF-PP1
Start=6/5, B1=350000000, B2=62650000000
2023-07-08masserNF-PP1
Start=75/47, B1=350000000, B2=14000000000
2022-05-30ATHNF-PM1
B1=40000000000, B2=16387889450983050
2021-09-12Seth_TrNF-PM1
B1=30000000000, B2=3000000000000
2021-09-02Seth_TrNF-PM1
B1=30000000000
2021-05-08ATHNF-PP1
Start=2/7, B1=500000000, B2=101500000000
2020-01-22YxinityNF
no factor from 2^65 to 2^66
2020-01-22YxinityNF
no factor from 2^65 to 2^66
2018-10-22YxinityNF
no factor from 2^64 to 2^65
2018-10-22YxinityNF
no factor from 2^64 to 2^65
2018-04-02YxinityNF
no factor from 2^63 to 2^64
2018-04-02YxinityNF
no factor from 2^63 to 2^64
2016-10-01Sid & AndyNF
no factor from 2^62 to 2^63
2016-02-23LaurVNF
no factor from 2^57 to 2^58
2015-04-11MadPooC-LL
48604C2FF85BEC29
2013-03-10bcp19NF-PM1
B1=10000000000, B2=100000000000, E=12
2011-12-10bcp19NF
no factor from 2^61 to 2^62
2011-12-07bcp19NF
no factor from 2^60 to 2^61
2009-02-04Sturle SundeNF
no factor from 2^59 to 2^60
2009-01-20Sturle SundeNF
no factor from 2^58 to 2^59