7 177 273 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
20201131730582525711	20	64.1	2014-02-05 08:31:01

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)	1999-06-06	Ken Burbank	2445504ED4C104C1	1586382
Verified (Factored)	2002-05-05	Willamette Mathematics	2445504ED4C104C1	3064613

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-02-17	Daniil Tsarkov	72DA8CA921B3EA86	1	6828252	5	3
Verified	2019-04-01	kkmrkkblmbrbk	72DA8CA921B3EA86	1	1202702	5	3

History

Date	User	Type	Result
2019-04-01	kkmrkkblmbrbk	C-PRP	M7177273/20201131730582525711 : 72DA8CA921B3EA86 PRP: Verified PRP without proof (not generated)
2018-02-17	Daniil Tsarkov	C-PRP	M7177273/20201131730582525711 : 72DA8CA921B3EA86 PRP: Verified PRP without proof (not generated)
2014-02-05	lycorn	F	Factor: 20201131730582525711 / TF: 64-65*
2014-02-02	Nesowa	NF	no factor from 2^63 to 2^64