3 252 367 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
645035442377	12	39.2	old
251856167724522006953	21	67.8	2021-01-09 20:29:05

ECM

Digits	B1	Curves
25	50000	9 / 280

Estimated T-Level: 20.2 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-11-02	Oliver Kruse	4D4D920533FD144F	1	1691538	5	3
Verified (Factored)	2017-12-13	kkmrkkblmbrbk	4D4D920533FD144F	1	1094042	5	3
Verified	2021-01-09	SRJ2877	4D4D920533FD144F	2	2534688	5	3

P-1 factors

Date	Factor	B1	B2
2021-01-09	251856167724522006953	325236	3252367

History

Date	User	Type	Result
2022-08-17	Joss	NF-PM1	B1=3252367, B2=330953700
2022-02-06	Joss	F	Factor: 251856167724522006953 / TF: 67-68
2021-12-25	Joss	NF-PM1	B1=3252367, B2=173804400
2021-10-03	Joss	NF-PM1	B1=3252367, B2=65047340, E=12
2021-01-10	Theo Polidano	CERT	PRP Certification Proof certified good
2021-01-09	SRJ2877	C-PRP	M3252367/645035442377/251856167724522006953 : 4D4D920533FD144F PRP proof power = 7 PRP: Verified Proof certified good
2021-01-09	Joss	F-PM1	Factor: 251856167724522006953 / (P-1, B1=325236, B2=3252367, E=6)
2021-01-09	Joss	NF-PM1	B1=325236
2020-12-25	Joss	NF-PM1	B1=108412
2017-12-13	kkmrkkblmbrbk	C-PRP	M3252367/645035442377 : 4D4D920533FD144F PRP: Verified (Factored) PRP without proof (not generated)
2017-11-02	Oliver Kruse	C-PRP	M3252367/645035442377 : 4D4D920533FD144F PRP: Verified (Factored) PRP without proof (not generated)