Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
5503TF
No factors below 266
TF target 244
TF below 2^185 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 72000000000
B2 = 51696085487496450
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000040830 / 40830
6026000000048044 / 105362
Estimated T-Level: 57.3
LL
StatusDateUserResidueShift
VerifiedUnknown2C620
VerifiedGeorge Woltman5CB15D1C3CED2C620
VerifiedBrian J. Beesley5CB15D1C3CED2C620
Verified2015-04-11MadPoo5CB15D1C3CED2C624807
History
DateUserTypeResult
2023-08-15masserNF-PP1
Start=6/5, B1=1610000000, B2=288190000000
2023-07-11masserNF-PM1
B1=72000000000, B2=51696085487496450
2023-07-10masserNF-PP1
Start=171/43, B1=1610000000, B2=64400000000
2023-01-21masserNF-PM1
B1=11250000000, B2=7546752410447250
2022-11-18JossNF-PM1
B1=1420000000, B2=2047793501303550
2022-11-18JossNF-PM1
B1=1420000000, B2=1025671265288670
2022-11-17JossNF-PM1
B1=1420000000, B2=67431669024720
2022-02-28Anton RepkoNF
no factor from 2^64 to 2^66
2021-05-13ATHNF-PP1
Start=2/7, B1=1000000000, B2=241000000000
2021-02-03Ruslan BorisovNF
no factor from 2^64 to 2^65
2017-07-03snme2pm1NF
no factor from 2^63 to 2^64
2016-11-26-Anonymous-NF-PM1
B1=100000000000, B2=1000000000000, E=12
2016-05-06JossNF-PM1
B1=4911327684, B2=157162485888, E=12
2016-05-04mikrNF-PM1
B1=50000000000, B2=3200000000000, E=12
2016-02-23LaurVNF
no factor from 2^57 to 2^58
2016-01-21snme2pm1NF
no factor from 2^62 to 2^63
2015-07-23Sid & AndyNF
no factor from 2^61 to 2^62
2015-04-11MadPooC-LL
5CB15D1C3CED2C62
2015-01-30JayderNF-PM1
B1=2455663842, B2=157162485888, E=12
2012-10-11bcp19NF
no factor from 2^60 to 2^61
2011-05-05JossNF-PM1
B1=10000000000
2011-01-18monstNF
no factor from 2^58 to 2^60
2011-01-02Matteo2DNF-PM1
B1=5000000000, B2=15000000000, E=12