4 872 877 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
110668680455935562390471	24	76.6	2013-12-21 20:30:19

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)	1998-06-14	Volker Ruroede	CC579ABBC16A23B0	0
Verified (Factored)	2000-03-27	Charles Dorian	CC579ABBC16A23B0	3913735

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	33011A8AD2BEBEC2	1	0	1	3
Verified	2018-04-01	ATH	33011A8AD2BEBEC2	1	3145595	1	3

P-1 factors

Date	Factor	B1	B2
2013-12-21	110668680455935562390471	420000	10920000

History

Date	User	Type	Result
2023-04-13	Kevin_9611	NF-PM1	B1=320000, B2=224341260
2018-04-01	ATH	C-PRP	M4872877/110668680455935562390471 : 33011A8AD2BEBEC2 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4872877/110668680455935562390471 : 33011A8AD2BEBEC2 PRP: Verified PRP without proof (not generated)
2013-12-21	David Campeau	F-PM1	Factor: 110668680455935562390471
2011-10-09	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-19	markr	NF	no factor from 2^61 to 2^62
2009-08-17	Carsten Kossendey	NF-PM1	B1=30000, B2=435000