7 827 983 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
203527559	9	27.6	old
328775287	9	28.3	2008-09-08 03:40:12
399573400145721796801	21	68.4	2024-02-06 07:25:19

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2018-05-23	_p95holder_	BBCCB31BAFA68F16	2	7363179	5	3
Verified (Factored)	2019-10-17	GAN	BBCCB31BAFA68F16	2	7743158	5	3
Verified	2024-02-12	Perig	BBCCB31BAFA68F16	3	4059781	5	3

P-1 factors

Date	Factor	B1	B2
2024-02-06	399573400145721796801	859000	859000

History

Date	User	Type	Result
2024-02-12	Santtu Rekilä	CERT	PRP Certification Proof certified good
2024-02-12	Perig	C-PRP	M7827983/203527559/328775287/399573400145721796801 : BBCCB31BAFA68F16 PRP proof power = 8 PRP: Verified Proof certified good
2024-02-06	Stef42	F-PM1	Factor: 399573400145721796801 / (P-1, B1=859000)
2019-10-17	GAN	C-PRP	M7827983/203527559/328775287 : BBCCB31BAFA68F16 PRP: Verified (Factored) PRP without proof (not generated)
2018-05-23	_p95holder_	C-PRP	M7827983/203527559/328775287 : BBCCB31BAFA68F16 PRP: Verified (Factored) PRP without proof (not generated)
2008-09-08	Will Edgington	F	Factor: 328775287