12 749 593 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
305990233	9	28.2	old
688478023	9	29.4	2008-09-08 08:38:18
2753912089	10	31.4	2008-09-08 08:38:18
628174167049003406775573263	27	89.0	2022-05-06 15:21:22

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-05-07	XZT	0E37852C18D0CA78	3	3135675	5	3
Verified	2023-03-15	Naegi Makoto	0E37852C18D0CA78	4	12187775	5	3

P-1 factors

Date	Factor	B1	B2
2022-05-06	628174167049003406775573263	400000	428459850

History

Date	User	Type	Result
2023-03-15	der Ata Rolf	CERT	PRP Certification Proof certified good
2023-03-15	Naegi Makoto	C-PRP	M12749593/305990233/688478023/2753912089/628174167049003406775573263 : 0E37852C18D0CA78 PRP proof power = 8 PRP: Verified Proof certified good
2022-05-07	Gyuri	CERT	PRP Certification Proof certified good
2022-05-07	XZT	C-PRP	M12749593/305990233/688478023/2753912089 : 0E37852C18D0CA78 PRP proof power = 8 PRP: Verified Proof certified good
2022-05-06	nordi	F-PM1	Factor: 628174167049003406775573263 / (P-1, B1=400000, B2=428459850)
2022-05-06	nordi	NF-PM1	B1=400000
2008-09-08	Will Edgington	F	Factor: 2753912089
2008-09-08	Will Edgington	F	Factor: 688478023