8 402 309 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 3 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶⁸

Factored

Factor	Digits	Bits	Date
1209932497	10	30.2	old
4867205534431	13	42.1	2008-09-30 23:52:38
226267056211969	15	47.7	2014-03-13 11:19:14

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-23	storm5510	FCB5CDB34C5694C4	3	1136224	5	3
Verified	PRP without proof (not generated)	2020-05-20	oodaira	FCB5CDB34C5694C4	3	2294931	5	3

History

Date	User	Type	Result
2024-03-11	Stef42	NF-PM1	B1=3000000, B2=5957542500
2020-05-20	oodaira	C-PRP	M8402309/1209932497/4867205534431/226267056211969 : FCB5CDB34C5694C4
2018-10-23	storm5510	C-PRP	M8402309/1209932497/4867205534431/226267056211969 : FCB5CDB34C5694C4
2014-03-13	TJAOI	F	Factor: 226267056211969
2008-09-30	markr	F	Factor: 4867205534431