2 399 081 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
134348537	9	27.0	old
435591540847	12	38.7	2008-07-14 20:23:36
2898867145445839	16	51.4	2014-06-25 11:30:34
25372032750588817	17	54.5	2014-11-26 12:12:04

ECM

Digits	B1	Curves
25	50000	66 / 280

Estimated T-Level: 21.2 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-12	Oliver Kruse	8A89B79D19803D7C	4	692617	5	3
Verified	2017-11-26	kkmrkkblmbrbk	8A89B79D19803D7C	4	1786530	5	3

History

Date	User	Type	Result
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-26	kkmrkkblmbrbk	C-PRP	M2399081/134348537/435591540847/2898867145445839/25372032750588817 : 8A89B79D19803D7C PRP: Verified PRP without proof (not generated)
2017-10-12	Oliver Kruse	C-PRP	M2399081/134348537/435591540847/2898867145445839/25372032750588817 : 8A89B79D19803D7C PRP: Verified PRP without proof (not generated)
2014-11-26	TJAOI	F	Factor: 25372032750588817 / TF: 54-55
2014-06-25	TJAOI	F	Factor: 2898867145445839
2008-07-14	George Woltman	F-ECM	Factor: 435591540847