4 292 567 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
1395175964777671513946567	25	80.2	2009-12-12 13:07:27

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)	1998-04-15	bryce mitchell	B35288E0C2BAB41A	0
Verified (Factored)	2000-05-17	Jean-Yves Canart	B35288E0C2BAB41A	712610

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	CD5EEA4C635C4584	1	0	1	3
Verified	2018-01-27	ATH	CD5EEA4C635C4584	1	3063776	1	3

History

Date	User	Type	Result
2023-03-09	USAFSS	NF-PM1	B1=224000, B2=111009150
2018-01-27	ATH	C-PRP	M4292567/1395175964777671513946567 : CD5EEA4C635C4584 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4292567/1395175964777671513946567 : CD5EEA4C635C4584 PRP: Verified PRP without proof (not generated)
2009-12-12	Aca Arsov	F-ECM	Factor: 1395175964777671513946567
2009-08-01	Carsten Kossendey	NF-PM1	B1=25000, B2=337500