9 252 169 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
4785269225574064565407	22	72.0	2014-06-18 19:06:25

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	2000-03-08	David Renaud	247202ED2A709112	8547112
Verified (Factored)	2003-08-25	Marc Getty / Phil Fizur	247202ED2A709112	2635705

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-08-14	mnd9	AE44FCD68A217D56	1	9223801	5	3
Verified	2020-11-06	kutens	AE44FCD68A217D56	1	2884010	5	3

History

Date	User	Type	Result
2020-11-06	Ben Delo	CERT	PRP Certification Proof certified good
2020-11-06	kutens	C-PRP	M9252169/4785269225574064565407 : AE44FCD68A217D56 PRP proof power = 8 PRP: Verified Proof certified good
2019-08-14	mnd9	C-PRP	M9252169/4785269225574064565407 : AE44FCD68A217D56 PRP: Verified PRP without proof (not generated)
2014-06-18	swildner	F-ECM	Factor: 4785269225574064565407 / (ECM curve 1, B1=50000, B2=5000000)
2013-09-07	Nesowa	NF	no factor from 2^64 to 2^65