2 266 801 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 3 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶²

Factored

Factor	Digits	Bits	Date
6909209449	10	32.7	old
11317455521124793	17	53.3	2014-09-18 11:58:31
430514088986854681	18	58.6	2015-09-16 11:10:17

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	190 / 640

Estimated T-Level: 26.5 ⓘ

TF below 2^83 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Factored	PRP without proof (not generated)	2017-10-10	Oliver Kruse	27B78971343A68FA	1	0	1	3
Verified	PRP without proof (not generated)	2017-10-18	Oliver Kruse	DE4181E802549875	3	833537	5	3
Verified	PRP without proof (not generated)	2017-11-21	storm5510	DE4181E802549875	3	518139	5	3

History

Date	User	Type	Result
2017-11-21	storm5510	C-PRP	M2266801/6909209449/11317455521124793/430514088986854681 : DE4181E802549875
2017-10-18	Oliver Kruse	C-PRP	M2266801/6909209449/11317455521124793/430514088986854681 : DE4181E802549875
2017-10-10	Oliver Kruse	C-PRP	M2266801/known_factors : 27B78971343A68FA
2016-04-23	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-09-16	TJAOI	F	Factor: 430514088986854681
2014-09-18	TJAOI	F	Factor: 11317455521124793