8 368 033 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
376412538949739471	18	58.4	old
104913980301780323777	21	66.5	2020-04-29 10:12:54
151396598732327995183	21	67.0	2021-06-29 09:11:51

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Factored	PRP without proof (not generated)	2018-10-17	ATH	649963FDFDE646E5	1	7031319	5	3
Factored	PRP without proof (not generated)	2020-04-30	Massimo Cappelli (ik5pwa)	649963FDFDE646E5	2	8329374	5	3
Verified	Certified Good	2021-07-04	Luigi Morelli	649963FDFDE646E5	3	2887364	5	3

History

Date	User	Type	Result
2024-03-07	Stef42	NF-PM1	B1=3000000, B2=53783100
2021-07-04	David A. McGough	CERT	Proof certified good
2021-07-04	Luigi Morelli	C-PRP	M8368033/376412538949739471/104913980301780323777/151396598732327995183 : 649963FDFDE646E5 Proof Certified Good Proof Power: 8
2021-06-29	TJAOI	F	Factor: 151396598732327995183
2020-04-30	Massimo Cappelli (ik5pwa)	C-PRP	M8368033/376412538949739471/104913980301780323777 : 649963FDFDE646E5
2020-04-29	TJAOI	F	Factor: 104913980301780323777
2018-10-17	ATH	C-PRP	M8368033/376412538949739471 : 649963FDFDE646E5
1998-09-20	-anonymous-	F	Factor: 376412538949739471