17 170 367 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
1077127619666420913320777561	28	89.8	2015-12-07 23:38:18

Status	Date	User	Residue	Shift
Verified (Factored)	2003-09-29	Stephen Wood	BD5FE2DA500773B5	14332693
Verified (Factored)	2006-07-10	Emily Kennedy	BD5FE2DA500773B5	312035

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-11-28	riccardo uberti	21F6AA95ADE0EA2C	1	3986915	5	3
Verified	2020-08-20	Jaytholomew	21F6AA95ADE0EA2C	1	7482825	5	3

P-1 factors

Date	Factor	B1	B2
2015-12-07	1077127619666420913320777561	430000	0

History

Date	User	Type	Result
2023-09-10	alpertron	NF-PM1	B1=500000, B2=156770460
2020-08-20	Jaytholomew	C-PRP	M17170367/1077127619666420913320777561 : 21F6AA95ADE0EA2C PRP: Verified PRP without proof (not generated)
2019-11-28	riccardo uberti	C-PRP	M17170367/1077127619666420913320777561 : 21F6AA95ADE0EA2C PRP: Verified PRP without proof (not generated)
2015-12-07	riccardo uberti	F-PM1	Factor: 1077127619666420913320777561 / (P-1, B1=430000)
2014-09-09	Nesowa	NF	no factor from 2^66 to 2^67
2014-03-12	Nesowa	NF	no factor from 2^65 to 2^66