2 732 629 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
68539770572394591791	20	65.9	2016-02-02 09:38:42

ECM

Digits	B1	Curves
25	50000	66 / 280

Estimated T-Level: 21.2 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		King Butler	524B8E687729247D	0
Verified (Factored)	1999-05-09	Jeroen Ensink	524B8E687729247D	991747

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-20	Oliver Kruse	4FD7D9C091F5EBC2	1	1807642	5	3
Verified	2017-12-05	kkmrkkblmbrbk	4FD7D9C091F5EBC2	1	1283645	5	3

History

Date	User	Type	Result
2023-02-25	USAFSS	NF-PM1	B1=360000, B2=287380170
2017-12-05	kkmrkkblmbrbk	C-PRP	M2732629/68539770572394591791 : 4FD7D9C091F5EBC2 PRP: Verified PRP without proof (not generated)
2017-10-20	Oliver Kruse	C-PRP	M2732629/68539770572394591791 : 4FD7D9C091F5EBC2 PRP: Verified PRP without proof (not generated)
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-02	ramgeis	F	Factor: 68539770572394591791 / TF: 65-66*
2015-04-13	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-13	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-04-10	markr	NF	no factor from 2^61 to 2^62
2011-02-28	James Heinrich	NF-PM1	B1=300000, B2=8000000, E=12
2011-01-19	Joss	NF-PM1	B1=50000
2010-12-28	Joss	NF-PM1	B1=30000
2010-12-19	Joss	NF-PM1	B1=20000
2009-01-27	Sturle Sunde	NF	no factor from 2^60 to 2^61