2 797 441 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
51674304939553651822249	23	75.5	2017-02-10 16:00:34

ECM

Digits	B1	Curves
25	50000	20 / 280

Estimated T-Level: 20.4 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Martin Fahlgren	A985833D5711DF09	0
Verified (Factored)	1999-05-02	chris clark	A985833D5711DF09	986223

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-21	Oliver Kruse	B0A0E372DF09FB47	1	625743	5	3
Verified	2017-12-06	kkmrkkblmbrbk	B0A0E372DF09FB47	1	2286352	5	3

History

Date	User	Type	Result
2023-02-26	USAFSS	NF-PM1	B1=300000, B2=235127970
2017-12-06	kkmrkkblmbrbk	C-PRP	M2797441/51674304939553651822249 : B0A0E372DF09FB47 PRP: Verified PRP without proof (not generated)
2017-10-21	Oliver Kruse	C-PRP	M2797441/51674304939553651822249 : B0A0E372DF09FB47 PRP: Verified PRP without proof (not generated)
2017-02-10	bam	F-ECM	Factor: 51674304939553651822249 / (ECM curve 2, B1=50000, B2=5000000)
2016-05-08	Joss	NF-PM1	B1=200000, B2=3600000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-10	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-21	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-21	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-11-06	Joss	NF-PM1	B1=122944
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-02-28	markr	NF	no factor from 2^61 to 2^62
2010-11-23	markr	NF-PM1	B1=100000, B2=2075000, E=6
2010-11-12	Joss	NF-PM1	B1=15000
2009-02-14	Sturle Sunde	NF	no factor from 2^60 to 2^61