8 018 921 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
98188255931720209	17	56.4	old
127484660995205899057	21	66.8	2020-09-16 09:09:40

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2018-07-23	_p95holder_	0E62458F9601E8D6	1	6913107	5	3
Verified (Factored)	2019-12-31	marssystems	0E62458F9601E8D6	1	4133172	5	3
Verified	2020-09-17	ViliamF	0E62458F9601E8D6	2	2234892	5	3

History

Date	User	Type	Result
2024-02-24	Stef42	NF-PM1	B1=937000, B2=1792472220
2020-09-17	Kriesel	CERT	PRP Certification Proof certified good
2020-09-17	ViliamF	C-PRP	M8018921/98188255931720209/127484660995205899057 : 0E62458F9601E8D6 PRP proof power = 8 PRP: Verified Proof certified good
2020-09-16	TJAOI	F	Factor: 127484660995205899057 / TF: 66-67
2019-12-31	marssystems	C-PRP	M8018921/98188255931720209 : 0E62458F9601E8D6 PRP: Verified (Factored) PRP without proof (not generated)
2018-07-23	_p95holder_	C-PRP	M8018921/98188255931720209 : 0E62458F9601E8D6 PRP: Verified (Factored) PRP without proof (not generated)