4 911 251 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶⁵

Factored

Factor	Digits	Bits	Date
107939474479	12	36.7	old
3582153726899543	16	51.7	2014-07-07 11:41:22

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	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-09-20	kkmrkkblmbrbk	D419E7F9818AB10E	2	0	1	3
Verified	PRP without proof (not generated)	2018-05-07	storm5510	D419E7F9818AB10E	2	3889995	1	3
Verified	PRP without proof (not generated)	2018-05-24	kracker	D419E7F9818AB10E	2	369024	1	3

History

Date	User	Type	Result
2022-10-29	USAFSS	NF-PM1	B1=260000, B2=167750730
2018-05-24	kracker	C-PRP	M4911251/107939474479/3582153726899543 : D419E7F9818AB10E
2018-05-07	storm5510	C-PRP	M4911251/107939474479/3582153726899543 : D419E7F9818AB10E
2017-09-20	kkmrkkblmbrbk	C-PRP	M4911251/107939474479/3582153726899543 : D419E7F9818AB10E
2014-07-07	TJAOI	F	Factor: 3582153726899543

Username
Password