2 372 371 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
4769496285821608889	19	62.0	2010-02-08 11:24:51

ECM

Digits	B1	Curves
25	50000	68 / 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)		Ethan O'Connor	43EDE8E5168363C0	0
Verified (Factored)	1999-03-01	Bjørn Roger Larsen	43EDE8E5168363C0	1397196

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-12	Oliver Kruse	640492C6F7F5AA99	1	1431803	5	3
Verified	2017-11-25	kkmrkkblmbrbk	640492C6F7F5AA99	1	2026004	5	3

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-25	kkmrkkblmbrbk	C-PRP	M2372371/4769496285821608889 : 640492C6F7F5AA99 PRP: Verified PRP without proof (not generated)
2017-10-12	Oliver Kruse	C-PRP	M2372371/4769496285821608889 : 640492C6F7F5AA99 PRP: Verified PRP without proof (not generated)
2010-02-08	SubPrime	F-ECM	Factor: 4769496285821608889
2009-01-16	Sturle Sunde	NF	no factor from 2^60 to 2^61