5 921 371 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
1072301074391	13	40.0	old
885147360035989377479	21	69.6	2023-05-12 01:46:17

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	D04A6FBB643478F2	1	0	1	3
Verified (Factored)	2018-09-12	rucio	D04A6FBB643478F2	1	1176675	1	3
Verified	2023-05-24	Naegi Makoto	7FD6B250FFAC2A94	2	729627	5	3

History

Date	User	Type	Result
2023-06-17	USAFSS	NF-PM1	B1=320000, B2=163234680
2023-05-24	ccat2002	CERT	PRP Certification Proof certified good
2023-05-24	Naegi Makoto	C-PRP	M5921371/1072301074391/885147360035989377479 : 7FD6B250FFAC2A94 PRP proof power = 7 PRP: Verified Proof certified good
2023-05-12	This -Anonymous-	F-ECM	Factor: 885147360035989377479
2018-09-12	rucio	C-PRP	M5921371/1072301074391 : D04A6FBB643478F2 PRP: Verified (Factored) PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M5921371/1072301074391 : D04A6FBB643478F2 PRP: Verified (Factored) PRP without proof (not generated)