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

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MnStatusDetails
3072107Factored
FactorDigitsBitsDate
149418986213063720621174232683.62020-12-25 10:20:50
ECM
DigitsB1Curves
255000036 / 280
Estimated T-Level: 20.6
TF below 2^64 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Jim Thompson8A4198179D30959F0
Verified (Factored)2000-03-28Gordon M. Spence8A4198179D30959F2286866
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2020-12-26Niels_Mache_Nextcloud3D3640DE2190547516899453
History
DateUserTypeResult
2022-09-27JossNF-PM1
B1=1000000, B2=118249950
2022-08-25JossNF-PM1
B1=1000000
2020-12-26Ben DeloCERT
PRP Certification
Proof certified good
2020-12-26Niels_Mache_NextcloudC-PRP
M3072107/14941898621306372062117423 : 3D3640DE21905475
PRP proof power = 7
PRP: Verified
Proof certified good
2020-12-25daveward2005F-ECM
Factor: 14941898621306372062117423 / (ECM curve 7, B1=50000, B2=5000000, Sigma=2331890147822686)
2018-08-05ramgeisNF
no factor from 2^67 to 2^68
2018-01-24mikrNF-PM1
B1=3000000, B2=100000000, E=12
2017-05-13Gordon SpenceNF
no factor from 2^66 to 2^67
2016-03-07Squeeky_SquirrelNF-PM1
B1=205000, B2=5996250, E=12
2015-06-06ThaNF
no factor from 2^65 to 2^66
2015-02-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-07VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-07dbaughNF
no factor from 2^62 to 2^63
2011-10-25Sid & AndyNF
no factor from 2^61 to 2^62
2010-09-21markrNF-PM1
B1=110000, B2=2447500, E=6
2009-02-13Sturle SundeNF
no factor from 2^60 to 2^61