8 414 191 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
1335875164347861892481873	25	80.1	2013-06-09 06:48:41

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)	2000-01-25	Troy Marshall	218A273FB6831CF8	1208794
Verified (Factored)	2002-11-16	Ars Technica Team Prime Rib	218A273FB6831CF8	599667

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-10-24	ATH	38F9398D648D1043	1	8240847	5	3
Verified	2020-05-23	Luigi Morelli	38F9398D648D1043	1	1315649	5	3

History

Date	User	Type	Result
2020-05-23	Luigi Morelli	C-PRP	M8414191/1335875164347861892481873 : 38F9398D648D1043 PRP: Verified PRP without proof (not generated)
2018-10-24	ATH	C-PRP	M8414191/1335875164347861892481873 : 38F9398D648D1043 PRP: Verified PRP without proof (not generated)
2013-06-09	swildner	F-ECM	Factor: 1335875164347861892481873
2012-07-04	bcp19	NF-PM1	B1=100000, B2=1825000, E=6