2 544 497 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
5972242669798694275111273	25	82.3	2011-02-18 09:35:33

ECM

Digits	B1	Curves
25	50000	165 / 280

Estimated T-Level: 22.9 ⓘ

TF below 2^71 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		fred	F450AA78A2E77715	0
Verified (Factored)	1999-03-26	David P. Drake	F450AA78A2E77715	2313417

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-16	kkmrkkblmbrbk	A36563BA90716D79	1	893632	5	3
Verified	2017-11-10	Oliver Kruse	A36563BA90716D79	1	1445180	5	3

History

Date	User	Type	Result
2022-09-01	USAFSS	NF-PM1	B1=360000, B2=311342850
2022-03-11	LordJulius	NF	no factor from 2^1 to 2^60
2017-11-10	Oliver Kruse	C-PRP	M2544497/5972242669798694275111273 : A36563BA90716D79 PRP: Verified PRP without proof (not generated)
2017-10-16	kkmrkkblmbrbk	C-PRP	M2544497/5972242669798694275111273 : A36563BA90716D79 PRP: Verified PRP without proof (not generated)
2011-02-18	James Heinrich	F-PM1	Factor: 5972242669798694275111273
2011-01-08	Joss	NF-PM1	B1=50000
2011-01-03	Joss	NF-PM1	B1=30000
2010-12-19	Joss	NF-PM1	B1=20000
2009-02-08	Sturle Sunde	NF	no factor from 2^60 to 2^61