7 862 213 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
83968434841	11	36.3	old
118357754503	12	36.8	2008-09-08 03:40:52
1972833659239	13	40.8	2008-09-30 23:49:22
563644252336800800111	21	68.9	2024-02-21 19:44:53

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2018-05-29	_p95holder_	96788D8BBB3C812F	3	61786	5	3
Verified (Factored)	2019-10-27	kkmrkkblmbrbk	96788D8BBB3C812F	3	7260931	5	3
Verified	2024-02-27	Perig	96788D8BBB3C812F	4	6983491	5	3

P-1 factors

Date	Factor	B1	B2
2024-02-21	563644252336800800111	2500000	2500000

History

Date	User	Type	Result
2024-02-27	Peter Mayes	CERT	PRP Certification Proof certified good
2024-02-27	Perig	C-PRP	M7862213/83968434841/118357754503/1972833659239/563644252336800800111 : 96788D8BBB3C812F PRP proof power = 8 PRP: Verified Proof certified good
2024-02-21	Stef42	F-PM1	Factor: 563644252336800800111 / (P-1, B1=2500000)
2019-10-27	kkmrkkblmbrbk	C-PRP	M7862213/83968434841/118357754503/1972833659239 : 96788D8BBB3C812F PRP: Verified (Factored) PRP without proof (not generated)
2018-05-29	_p95holder_	C-PRP	M7862213/83968434841/118357754503/1972833659239 : 96788D8BBB3C812F PRP: Verified (Factored) PRP without proof (not generated)
2008-09-30	markr	F	Factor: 1972833659239
2008-09-08	Will Edgington	F	Factor: 118357754503