5 790 599 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
155221165465430574577	21	67.1	2018-07-05 15:05:42

ECM

Digits	B1	Curves
25	50000	6 / 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)	1998-09-06	Christopher Lund	7020FA054553A1EA	0
Verified (Factored)	2000-10-22	Northwestern College	7020FA054553A1EA	2062668

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-07-06	Gabriel Lignelli	A1DEBE10184C7ED6	1	5075043	5	3
Verified	2018-07-08	kkmrkkblmbrbk	A1DEBE10184C7ED6	1	1620791	5	3

History

Date	User	Type	Result
2025-08-15	Sid & Andy	NF-PM1	B1=3000000, B2=6967396800
2018-07-08	kkmrkkblmbrbk	C-PRP	M5790599/155221165465430574577 : A1DEBE10184C7ED6 PRP: Verified PRP without proof (not generated)
2018-07-06	Gabriel Lignelli	C-PRP	M5790599/155221165465430574577 : A1DEBE10184C7ED6 PRP: Verified PRP without proof (not generated)
2018-07-05	ramgeis	F	Factor: 155221165465430574577 / TF: 67-68*
2016-07-08	Gordon Spence	NF	no factor from 2^66 to 2^67
2015-09-10	snme2pm1	NF	no factor from 2^65 to 2^66
2014-11-05	monst	NF	no factor from 2^64 to 2^65
2014-11-05	Nesowa	NF	no factor from 2^63 to 2^64
2011-02-19	USAFSS	NF-PM1	B1=65000, B2=1088750, E=6
2009-03-25	GrunwalderGIMP	NF	no factor from 2^62 to 2^63