6 457 861 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
38747167	8	25.2	old
103325777	9	26.6	2008-09-08 02:48:19
185334927782321	15	47.4	2014-03-05 11:31:49
41118775981545253561	20	65.2	2018-07-03 09:27:52

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-12-18	Oliver Kruse	049B272D071D1093	3	2265765	5	3
Verified	2018-07-04	_p95holder_	049B272D071D1093	4	2667267	5	3

History

Date	User	Type	Result
2023-11-20	Stef42	NF-PM1	B1=109000, B2=124105800
2018-07-04	_p95holder_	C-PRP	M6457861/38747167/103325777/185334927782321/41118775981545253561 : 049B272D071D1093 PRP: Verified PRP without proof (not generated)
2018-07-03	TJAOI	F	Factor: 41118775981545253561 / TF: 65-66
2017-12-18	Oliver Kruse	C-PRP	M6457861/38747167/103325777/185334927782321 : 049B272D071D1093 PRP: Verified PRP without proof (not generated)
2014-03-05	TJAOI	F	Factor: 185334927782321
2008-09-08	Will Edgington	F	Factor: 103325777