4 591 991 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
12679348032611640727	20	63.5	2010-05-02 20:39:03
246515955573457114049	21	67.7	2023-03-21 09:47:58

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Guido Stolz	C22B73516F4D5704	0
Verified (Factored)		Kevin D. Quitt	C22B73516F4D5704	1112206

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	206E003FD984FF10	1	0	1	3
Verified (Factored)	2018-02-25	Oliver Kruse	206E003FD984FF10	1	2698797	1	3
Verified	2023-03-27	Funky Waddle	B96852A1E9E8B49B	2	1275874	5	3

History

Date	User	Type	Result
2023-03-27	iwes	CERT	PRP Certification Proof certified good
2023-03-27	Funky Waddle	C-PRP	M4591991/12679348032611640727/246515955573457114049 : B96852A1E9E8B49B PRP proof power = 7 PRP: Verified Proof certified good
2023-03-21	TJAOI	F	Factor: 246515955573457114049 / TF: 67-68
2022-09-09	USAFSS	NF-PM1	B1=280000, B2=122759910
2018-02-25	Oliver Kruse	C-PRP	M4591991/12679348032611640727 : 206E003FD984FF10 PRP: Verified (Factored) PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4591991/12679348032611640727 : 206E003FD984FF10 PRP: Verified (Factored) PRP without proof (not generated)
2010-05-02	Aca Arsov	F-ECM	Factor: 12679348032611640727