6 024 497 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
20887620282660369361	20	64.2	2014-05-30 03:44:44

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1999-01-10	Wayne Sheppard	8B2A1C23FACFC9F4	0
Verified (Factored)	2001-03-25	Christian Schweingruber	8B2A1C23FACFC9F4	5414538

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	1B1C764F867B235B	1	0	1	3
Verified	2018-09-15	rucio	1B1C764F867B235B	1	5775176	1	3

History

Date	User	Type	Result
2025-01-11	Stef42	NF-PM1	B1=1984000, B2=5513903850
2022-06-22	LordJulius	NF	no factor from 2^62 to 2^63
2018-09-15	rucio	C-PRP	M6024497/20887620282660369361 : 1B1C764F867B235B PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M6024497/20887620282660369361 : 1B1C764F867B235B PRP: Verified PRP without proof (not generated)
2014-05-30	c10ck3r	F	Factor: 20887620282660369361 / TF: 63-65*
2011-03-23	markr	NF-PM1	B1=110000, B2=2172500, E=6