18 800 567 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
25994442631285580459191	23	74.5	2022-04-08 03:19:24

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)	2003-05-19	Jeff Sullivan	1E9924835E57739E	16728312
Verified (Factored)	2007-02-20	TheJudger	1E9924835E57739E	13514950

History

Date	User	Type	Result
2022-04-11	masser	NF-PP1	Start=135/71, B1=50000, B2=700000
2022-04-08	masser	F-PP1	Start=6/5, B1=200000, B2=4200000, Factor: 25994442631285580459191
2022-03-26	masser	NF-PM1	B1=1000000, B2=181212780
2021-11-19	-Anonymous-	NF	no factor from 2^72 to 2^73
2021-10-08	-Anonymous-	NF	no factor from 2^71 to 2^72
2021-09-12	SRBase	NF	no factor from 2^70 to 2^71
2020-01-22	lycorn	NF	no factor from 2^69 to 2^70
2017-09-18	ramgeis	NF	no factor from 2^68 to 2^69
2017-09-18	ramgeis	NF	no factor from 2^67 to 2^68
2014-08-02	Nesowa	NF	no factor from 2^66 to 2^67