9 427 931 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
6976834107204403540561	22	72.6	2014-08-25 02:34:14

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)	2000-03-01	Marc Getty / Phil Fizur	66BC0B61E743B89F	5599363
Verified (Factored)	2003-05-11	Britton Devon Smith	66BC0B61E743B89F	2577115

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-09-14	mnd9	1C12F7F3F146A238	1	1095430	5	3
Verified	2020-11-27	kutens	1C12F7F3F146A238	1	5447674	5	3

History

Date	User	Type	Result
2020-12-03	ANONYMOUS	CERT	PRP Certification Proof certified good
2020-11-27	kutens	C-PRP	M9427931/6976834107204403540561 : 1C12F7F3F146A238 PRP proof power = 8 PRP: Verified Proof certified good
2019-09-14	mnd9	C-PRP	M9427931/6976834107204403540561 : 1C12F7F3F146A238 PRP: Verified PRP without proof (not generated)
2014-08-25	swildner	F-ECM	Factor: 6976834107204403540561 / (ECM curve 3, B1=50000, B2=5000000)
2013-09-03	Nesowa	NF	no factor from 2^64 to 2^65
2012-12-02	Nesowa	NF-PM1	B1=115000, B2=2156250, E=6