8 134 627 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 4 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
1301540321	10	30.3	old
6637855633	10	32.6	2008-09-08 04:25:17
9445774121403493529	19	63.0	2016-11-30 12:26:39
7446425752245553145801177	25	82.6	2023-02-17 11:46:02

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2018-06-09	kkmrkkblmbrbk	A46F9E82092FC0F2	3	527823	5	3
Verified (Factored)	2020-02-20	Adam B	A46F9E82092FC0F2	3	2702625	5	3
Verified	2023-02-18	Flaukrotist	A46F9E82092FC0F2	4	7118579	5	3

P-1 factors

Date	Factor	B1	B2
2023-02-17	7446425752245553145801177	2200000	1854795030

History

Date	User	Type	Result
2023-05-16	Flaukrotist	NF	no factor from 2^68 to 2^69
2023-02-18	hoonhout	CERT	PRP Certification Proof certified good
2023-02-18	Flaukrotist	C-PRP	M8134627/1301540321/6637855633/9445774121403493529/7446425752245553145801177 : A46F9E82092FC0F2 PRP proof power = 8 PRP: Verified Proof certified good
2023-02-17	Flaukrotist	F-PM1	Factor: 7446425752245553145801177 / (P-1, B1=2200000, B2=1854795030)
2022-06-22	LordJulius	NF	no factor from 2^66 to 2^67
2022-06-22	LordJulius	NF	no factor from 2^65 to 2^66
2022-06-22	LordJulius	NF	no factor from 2^64 to 2^65
2022-04-24	Flaukrotist	NF	no factor from 2^67 to 2^68
2020-02-20	Adam B	C-PRP	M8134627/1301540321/6637855633/9445774121403493529 : A46F9E82092FC0F2 PRP: Verified (Factored) PRP without proof (not generated)
2018-06-09	kkmrkkblmbrbk	C-PRP	M8134627/1301540321/6637855633/9445774121403493529 : A46F9E82092FC0F2 PRP: Verified (Factored) PRP without proof (not generated)
2016-11-30	TJAOI	F	Factor: 9445774121403493529 / TF: 63-64
2008-09-08	Will Edgington	F	Factor: 6637855633