9 307 273 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
11331380242831394289857	23	73.3	2014-07-12 12:36:53

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)	2000-05-10	Barry Hansen	E0784667BC32131B	854001
Verified (Factored)	2003-04-10	Ars Technica Team Prime Rib	E0784667BC32131B	8213013

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-08-23	mnd9	BF9CBB97FB4212EA	1	3195927	5	3
Verified	2020-11-15	LaurV	BF9CBB97FB4212EA	1	3811908	5	3

History

Date	User	Type	Result
2020-11-15	Chun sung soo	CERT	PRP Certification Proof certified good
2020-11-15	LaurV	C-PRP	M9307273/11331380242831394289857 : BF9CBB97FB4212EA PRP proof power = 8 PRP: Verified Proof certified good
2019-08-23	mnd9	C-PRP	M9307273/11331380242831394289857 : BF9CBB97FB4212EA PRP: Verified PRP without proof (not generated)
2014-07-12	swildner	F-ECM	Factor: 11331380242831394289857 / (ECM curve 3, B1=50000, B2=5000000)
2013-09-06	Nesowa	NF	no factor from 2^64 to 2^65
2012-08-08	James Heinrich	NF-PM1	B1=175000, B2=3850000, E=6