Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
7321TF
No factors below 266
TF target 244
TF below 2^182 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 33000000000
B2 = 136591402877229300
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000040830 / 40830
6026000000029837 / 105362
Estimated T-Level: 56.4 ⓘ
LL
StatusDateUserResidueShift
VerifiedUnknown07360
VerifiedGeorge Woltman71859942CD4387360
VerifiedBrian J. Beesley71859942CD4387360
Verified2015-04-11MadPoo71859942CD4387366441
History
DateUserTypeResult
2023-08-30-Anonymous-NF-PM1
B1=33000000000, B2=136591402877229300
2023-08-17masserNF-PP1
Start=6/5, B1=1160000000, B2=207640000000
2023-07-19masserNF-PM1
B1=72000000000, B2=82656994240821000
2023-07-10masserNF-PP1
Start=159/43, B1=1160000000, B2=46400000000
2022-02-28Anton RepkoNF
no factor from 2^64 to 2^66
2021-05-12ATHNF-PP1
Start=2/7, B1=1000000000, B2=241000000000
2021-01-24Ruslan BorisovNF
no factor from 2^64 to 2^65
2018-08-21snme2pm1NF
no factor from 2^63 to 2^64
2016-11-29snme2pm1NF
no factor from 2^62 to 2^63
2016-11-21-Anonymous-NF-PM1
B1=100000000000, B2=1000000000000, E=12
2016-11-20-Anonymous-NF-PM1
B1=40000000000, B2=400000000000, E=12
2016-11-19-Anonymous-NF-PM1
B1=20000000000, B2=200000000000, E=12
2016-02-23LaurVNF
no factor from 2^57 to 2^58
2015-08-25Sid & AndyNF
no factor from 2^61 to 2^62
2015-04-11MadPooC-LL
71859942CD438736
2012-12-04SRJ2877NF-PM1
B1=12500000000, B2=250000000000, E=12
2012-11-08bcp19NF
no factor from 2^60 to 2^61
2010-08-10chalsallNF
no factor from 2^59 to 2^60
2010-08-10chalsallNF
no factor from 2^58 to 2^59