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
2273TF
No factors below 266
TF target 244
TF below 2^220 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 216000000000
B2 = 522616969739985120
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000040830 / 40830
60260000000105362 / 105362
65800000000194238 / 194238
702400000000194465 / 350860
Estimated T-Level: 67.8
LL
StatusDateUserResidueShift
VerifiedUnknown23B10
VerifiedGeorge Woltman942DECBBF9EE23B10
VerifiedBrian J. Beesley942DECBBF9EE23B10
Verified2015-04-11MadPoo942DECBBF9EE23B1136
History
DateUserTypeResult
2023-08-10masserNF-PP1
Start=6/5, B1=4390000000, B2=785810000000
2023-07-03masserNF-PM1
B1=216000000000, B2=522616969739985120
2023-06-28masserNF-PP1
Start=131/13, B1=4390000000, B2=4385610000000
2022-04-10Anton RepkoNF
no factor from 2^64 to 2^66
2021-05-12ATHNF-PP1
Start=2/7, B1=1000000000, B2=241000000000
2020-12-31Ruslan BorisovNF
no factor from 2^64 to 2^65
2017-12-08snme2pm1NF
no factor from 2^63 to 2^64
2017-02-10James HintzNF-PM1
B1=3106063887077, B2=248485110966160, E=12
2016-09-01snme2pm1NF
no factor from 2^62 to 2^63
2015-07-09MadPooNF-PM1
B1=1663924739107, B2=10000000000000, E=12
2015-05-04snme2pm1NF
no factor from 2^61 to 2^62
2015-04-11MadPooC-LL
942DECBBF9EE23B1
2014-12-18James HintzNF-PM1
B1=100000000000, B2=10000000000000, E=12
2012-04-16bcp19NF
no factor from 2^60 to 2^61
2011-05-20JossNF-PM1
B1=20000000000
2010-12-17monstNF
no factor from 2^59 to 2^60
2009-08-07James HintzNF-PM1
B1=10000000000, B2=200000000000, E=12
2009-07-11abcNF
no factor to 2^59