2 780 053 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
575609241756693452904549053993	30	98.9	2016-08-27 17:43:39

ECM

Digits	B1	Curves
25	50000	18 / 280

Estimated T-Level: 20.3 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Stephen Wood	6FC0743373CBC00D	0
Verified (Factored)	1999-05-02	Philip Heede	6FC0743373CBC00D	793477

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-21	Oliver Kruse	F63B90592217779B	1	989179	5	3
Verified	2017-12-06	kkmrkkblmbrbk	F63B90592217779B	1	1875320	5	3

P-1 factors

Date	Factor	B1	B2
2016-08-27	575609241756693452904549053993	142000	4785000

History

Date	User	Type	Result
2023-02-26	USAFSS	NF-PM1	B1=300000, B2=235127970
2017-12-06	kkmrkkblmbrbk	C-PRP	M2780053/575609241756693452904549053993 : F63B90592217779B PRP: Verified PRP without proof (not generated)
2017-10-21	Oliver Kruse	C-PRP	M2780053/575609241756693452904549053993 : F63B90592217779B PRP: Verified PRP without proof (not generated)
2016-08-27	Joss	F-PM1	Factor: 575609241756693452904549053993 / (P-1, B1=142000, B2=4785000, E=6)
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-12-20	omylist	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
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-03-13	Grant McCracken	NF	no factor from 2^61 to 2^62
2010-11-26	markr	NF-PM1	B1=110000, B2=2392500, E=6
2010-11-10	Joss	NF-PM1	B1=15000
2009-01-27	Sturle Sunde	NF	no factor from 2^60 to 2^61