4 194 301 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
2873888432993463577	19	61.3	old

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)		Conrad Curry	F4E12B59552BF911	0
Verified (Factored)		Steve Sommars	F4E12B59552BF911	0
Verified (Factored)		S09429	F4E12B59552BF911	3754002

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	1A652E695C11238D	1	0	1	3
Verified	2018-01-18	Chang Chia-Tche	1A652E695C11238D	1	2587947	1	3

History

Date	User	Type	Result
2023-03-04	USAFSS	NF-PM1	B1=224000, B2=119776800
2018-01-18	Chang Chia-Tche	C-PRP	M4194301/2873888432993463577 : 1A652E695C11238D PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4194301/2873888432993463577 : 1A652E695C11238D PRP: Verified PRP without proof (not generated)