2 099 771 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
4199543	7	22.0	old
2726635252792530989198969	25	81.2	2016-01-25 11:59:38

ECM

Digits	B1	Curves
25	50000	106 / 280

Estimated T-Level: 21.9 ⓘ

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

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-30	alpertron	71F311A8AE34FF38	2	0	1	3
Verified	2017-10-21	Oliver Kruse	71F311A8AE34FF38	2	437502	1	3

P-1 factors

Date	Factor	B1	B2
2016-01-25	2726635252792530989198969	500000	15000000

History

Date	User	Type	Result
2017-10-21	Oliver Kruse	C-PRP	M2099771/4199543/2726635252792530989198969 : 71F311A8AE34FF38 PRP: Verified PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M2099771/2726635252792530989198969/4199543 : 71F311A8AE34FF38 PRP: Verified PRP without proof (not generated)
2016-01-25	alpertron	F-PM1	Factor: 2726635252792530989198969 / (P-1, B1=500000, B2=15000000, E=12)