7 556 909 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
322468420849	12	38.2	old
3518965358759	13	41.7	2008-09-30 23:48:51
589459441678663	15	49.1	2014-04-22 10:45:59
42478401696115858009	20	65.2	2018-07-25 09:26:35

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2018-03-08	kkmrkkblmbrbk	6C8E54316A63A4CF	3	7538298	5	3
Verified	2018-07-31	_p95holder_	6C8E54316A63A4CF	4	5457000	5	3

History

Date	User	Type	Result
2024-02-15	Stef42	NF-PM1	B1=2500000, B2=6104692440
2018-07-31	_p95holder_	C-PRP	M7556909/322468420849/3518965358759/589459441678663/42478401696115858009 : 6C8E54316A63A4CF PRP: Verified PRP without proof (not generated)
2018-07-25	TJAOI	F	Factor: 42478401696115858009 / TF: 65-66
2018-03-08	kkmrkkblmbrbk	C-PRP	M7556909/322468420849/3518965358759/589459441678663 : 6C8E54316A63A4CF PRP: Verified PRP without proof (not generated)
2014-04-22	TJAOI	F	Factor: 589459441678663
2008-09-30	markr	F	Factor: 3518965358759