2 175 577 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
9459987647797467232919	22	73.0	2009-12-05 02:18:49

ECM

Digits	B1	Curves
25	50000	96 / 280

Estimated T-Level: 21.7 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Jeff Woods	6A0CC54F7D73D8B8	0
Verified (Factored)	1999-02-07	Ethan Hansen	6A0CC54F7D73D8B8	1347636

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-09	kkmrkkblmbrbk	0EA83B92C4532834	1	0	1	3
Verified	2017-10-23	Oliver Kruse	0EA83B92C4532834	1	1822222	1	3

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2017-10-23	Oliver Kruse	C-PRP	M2175577/9459987647797467232919 : 0EA83B92C4532834 PRP: Verified PRP without proof (not generated)
2017-10-09	kkmrkkblmbrbk	C-PRP	M2175577/9459987647797467232919 : 0EA83B92C4532834 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2009-12-05	James Hintz	F-ECM	Factor: 9459987647797467232919
2009-01-06	Sturle Sunde	NF	no factor from 2^61 to 2^62
2009-01-04	Sturle Sunde	NF	no factor from 2^60 to 2^61