14 085 713 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
917979225894252596273471	24	79.6	2021-09-02 21:17:06

ECM

Digits	B1	Curves
25	50000	9 / 280

Estimated T-Level: 20.2 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	2002-03-31	Raymond Fung	29904293D0C0313F	8068662
Verified (Factored)	2003-08-31	C. Cooper / S. Boone	29904293D0C0313F	13506226

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-12-23	Funky Waddle	131CC7A2B735801A	1	8769159	5	3

History

Date	User	Type	Result
2022-12-23	Chad Steenerson	CERT	PRP Certification Proof certified good
2022-12-23	Funky Waddle	C-PRP	M14085713/917979225894252596273471 : 131CC7A2B735801A PRP proof power = 8 PRP: Verified Proof certified good
2021-09-02	masser	F-PP1	Start=2/7, B1=1000000, Factor: 917979225894252596273471
2021-07-27	masser	NF	no factor from 2^71 to 2^72
2021-03-03	masser	NF-PM1	B1=7000000, B2=210000000
2021-01-16	masser	NF-PM1	B1=580000, B2=13600000, e=12
2020-07-14	masser	NF	no factor from 2^70 to 2^71
2020-07-14	masser	NF	no factor from 2^69 to 2^70
2018-03-13	ramgeis	NF	no factor from 2^68 to 2^69
2018-03-13	ramgeis	NF	no factor from 2^67 to 2^68
2017-04-07	Tha	NF-PM1	B1=300000, B2=6000000, E=6
2015-08-23	Tha	NF	no factor from 2^66 to 2^67
2014-07-22	Nesowa	NF	no factor from 2^65 to 2^66