7 521 607 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
73061400372353	14	46.1	old
76503434978530633	17	56.1	2015-03-06 12:42:12
189980595443142929	18	57.4	2015-06-17 11:11:52
41060790690535934999	20	65.2	2018-06-28 12:21:41

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2018-03-07	kkmrkkblmbrbk	791F1714C386A2BE	3	4682972	5	3
Verified	2018-07-03	_p95holder_	791F1714C386A2BE	4	114199	5	3

History

Date	User	Type	Result
2024-02-14	Stef42	NF-PM1	B1=2500000, B2=6104692440
2022-03-21	LordJulius	NF	no factor from 2^64 to 2^65
2022-03-21	LordJulius	NF	no factor from 2^63 to 2^64
2018-07-03	_p95holder_	C-PRP	M7521607/73061400372353/76503434978530633/189980595443142929/41060790690535934999 : 791F1714C386A2BE PRP: Verified PRP without proof (not generated)
2018-06-28	TJAOI	F	Factor: 41060790690535934999 / TF: 65-66
2018-03-07	kkmrkkblmbrbk	C-PRP	M7521607/189980595443142929/73061400372353/76503434978530633 : 791F1714C386A2BE PRP: Verified PRP without proof (not generated)
2015-06-17	TJAOI	F	Factor: 189980595443142929 / TF: 57-58
2015-03-06	TJAOI	F	Factor: 76503434978530633 / TF: 56-57