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

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Exponent Range:










MnStatusDetails
4607311Factored
FactorDigitsBitsDate
4615807058099089749716992282384167374637741135.12023-02-21 04:27:11
ECM
DigitsB1Curves
25500009 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Henning Lebius51192D4F8B1B244E0
Verified (Factored)Sturle Sunde51192D4F8B1B244E0
Verified (Factored)2015-11-14MadPoo51192D4F8B1B244E1453670
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-02-27LordJulius2A615161DFF6F9181423794453
P-1 factors
DateFactorB1B2
2023-02-2146158070580990897497169922823841673746377430000011204171550
History
DateUserTypeResult
2023-02-27Khurshid SuyunovCERT
PRP Certification
Proof certified good
2023-02-27LordJuliusC-PRP
M4607311/46158070580990897497169922823841673746377 : 2A615161DFF6F918
PRP proof power = 7
PRP: Verified
Proof certified good
2023-02-21Sid & AndyF-PM1
Factor: 46158070580990897497169922823841673746377 / (P-1, B1=4300000, B2=11204171550)
2021-03-23-Anonymous-NF
no factor from 2^71 to 2^72
2021-03-21-Anonymous-NF
no factor from 2^70 to 2^71
2021-03-21-Anonymous-NF
no factor from 2^69 to 2^70
2021-03-21-Anonymous-NF
no factor from 2^68 to 2^69
2018-09-28chuenkitNF
no factor from 2^67 to 2^68
2018-05-01Gordon SpenceNF
no factor from 2^66 to 2^67
2017-12-11Ismo LaitelaNF-PM1
B1=1988203, B2=61634303, E=12
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-11-14MadPooC-LL
51192D4F8B1B244E
2015-07-04snme2pm1NF
no factor from 2^65 to 2^66
2015-01-17monstNF
no factor from 2^64 to 2^65
2015-01-16JayderNF
no factor from 2^63 to 2^64
2012-01-20Squeeky_SquirrelNF-PM1
B1=110000, B2=2035000, E=6
2011-12-09GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-08-08markrNF
no factor from 2^61 to 2^62
2009-09-12Carsten KossendeyNF-PM1
B1=25000, B2=375000