2 122 837 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
7378700069644210553	19	62.7	2009-11-18 04:43:46

ECM

Digits	B1	Curves
25	50000	112 / 280

Estimated T-Level: 22.0 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Ronnie VanDommelen	0F89096FBED6CB39	0
Verified (Factored)	1999-02-14	Walt Cooney	0F89096FBED6CB39	833864

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-07	Oliver Kruse	1C799199EE0A834D	1	0	1	3
Verified	2017-11-17	kkmrkkblmbrbk	1C799199EE0A834D	1	533874	1	3

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2017-11-17	kkmrkkblmbrbk	C-PRP	M2122837/7378700069644210553 : 1C799199EE0A834D PRP: Verified PRP without proof (not generated)
2017-10-07	Oliver Kruse	C-PRP	M2122837/7378700069644210553 : 1C799199EE0A834D PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2009-11-18	SubPrime	F-ECM	Factor: 7378700069644210553
2009-08-03	USAFSS	NF-PM1	B1=20000, B2=265000
2009-01-03	Sturle Sunde	NF	no factor from 2^60 to 2^61