3 887 557 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
24319144448271416441	20	64.4	2012-09-27 03:56:40

ECM

Digits	B1	Curves
25	50000	4 / 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)	1998-05-08	Bjorn Skog	E424824DFDC33FE3	0
Verified (Factored)	1999-10-29	C. Cooper / S. Boone	E424824DFDC33FE3	1180998

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	12E47D46C241FE1B	1	0	1	3
Verified	2017-12-26	ATH	12E47D46C241FE1B	1	3671213	1	3

History

Date	User	Type	Result
2022-05-26	Joss	NF-PM1	B1=100000, B2=130364850
2022-03-22	Joss	NF-PM1	B1=100000
2022-03-05	Joss	NF-PM1	B1=90000
2017-12-26	ATH	C-PRP	M3887557/24319144448271416441 : 12E47D46C241FE1B PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M3887557/24319144448271416441 : 12E47D46C241FE1B PRP: Verified PRP without proof (not generated)
2012-09-27	oodaira	F-ECM	Factor: 24319144448271416441
2012-02-29	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-10-13	Squeeky_Squirrel	NF-PM1	B1=70000, B2=1155000, E=6
2011-02-05	markr	NF	no factor from 2^61 to 2^62
2009-07-30	Carsten Kossendey	NF-PM1	B1=20000, B2=275000
2009-02-24	S485122	NF	no factor from 2^60 to 2^61