5 846 891 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
23867055743449112399	20	64.4	2011-05-18 08:00:24

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-10-25	Dominic Fitzpatrick	C4B77D951E5BC0F4	0
Verified (Factored)	2001-01-28	Markus Weigand	C4B77D951E5BC0F4	5664084

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	A73237713E1C2229	1	0	1	3
Verified	2018-08-30	Luigi Morelli	A73237713E1C2229	1	4964166	1	3

History

Date	User	Type	Result
2018-08-30	Luigi Morelli	C-PRP	M5846891/23867055743449112399 : A73237713E1C2229 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M5846891/23867055743449112399 : A73237713E1C2229 PRP: Verified PRP without proof (not generated)
2011-05-18	JimBa	F-ECM	Factor: 23867055743449112399
2011-02-28	USAFSS	NF-PM1	B1=65000, B2=1088750, E=6
2009-03-24	GrunwalderGIMP	NF	no factor from 2^62 to 2^63