2 392 573 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
2731930575739258097	19	61.2	old

ECM

Digits	B1	Curves
25	50000	195 / 280

Estimated T-Level: 23.5 ⓘ

TF below 2^73 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-05-23	Tom Cage	BF63569B9A9E5FFF	0
Verified (Factored)	1999-05-30	Stephen Wood	BF63569B9A9E5FFF	669820

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-12	Oliver Kruse	C05307787A418FED	1	1465460	5	3
Verified	2017-11-26	kkmrkkblmbrbk	C05307787A418FED	1	316841	5	3

History

Date	User	Type	Result
2022-12-18	kracker	F-ECM	Factor: 2731930575739258097 / (ECM curve 116, B1=50000, B2=38914785, Sigma=7425221403621024)
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-26	kkmrkkblmbrbk	C-PRP	M2392573/2731930575739258097 : C05307787A418FED PRP: Verified PRP without proof (not generated)
2017-10-12	Oliver Kruse	C-PRP	M2392573/2731930575739258097 : C05307787A418FED PRP: Verified PRP without proof (not generated)