6 961 739 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
13923479	8	23.7	old
154397447543	12	37.2	2008-09-08 03:04:30
113308502516835137	18	56.7	2015-04-21 11:09:04
1985760799533434233	19	60.8	2016-03-04 12:36:52

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-24	kkmrkkblmbrbk	83F7C59A6B17F820	4	3986265	5	3
Verified	2019-02-10	ATH	83F7C59A6B17F820	4	6870029	5	3

History

Date	User	Type	Result
2024-01-02	Stef42	NF-PM1	B1=600000, B2=1280476890
2019-02-10	ATH	C-PRP	M6961739/13923479/154397447543/113308502516835137/1985760799533434233 : 83F7C59A6B17F820 PRP: Verified PRP without proof (not generated)
2017-10-24	kkmrkkblmbrbk	C-PRP	M6961739/13923479/154397447543/113308502516835137/1985760799533434233 : 83F7C59A6B17F820 PRP: Verified PRP without proof (not generated)
2016-03-04	TJAOI	F	Factor: 1985760799533434233 / TF: 60-61
2015-04-21	TJAOI	F	Factor: 113308502516835137 / TF: 56-57
2008-09-08	Will Edgington	F	Factor: 154397447543