8 328 571 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶⁸

Factored

Factor	Digits	Bits	Date
534309611476937	15	48.9	old
1720781395537783	16	50.6	2014-06-04 11:31:37

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-11	rucio	F3C9FF9670C3E719	2	4422263	5	3
Verified	PRP without proof (not generated)	2020-04-23	marssystems	F3C9FF9670C3E719	2	5805683	5	3

History

Date	User	Type	Result
2024-06-10	Stef42	NF-PM1	B1=1363000, B2=2725257990
2020-04-23	marssystems	C-PRP	M8328571/534309611476937/1720781395537783 : F3C9FF9670C3E719
2018-10-11	rucio	C-PRP	M8328571/534309611476937/1720781395537783 : F3C9FF9670C3E719
2014-06-04	TJAOI	F	Factor: 1720781395537783