13 743 533 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
827377246390384074169	21	69.5	2016-08-03 10:59:17

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)	2002-01-28	Andrew China	823EE90469E839F7	11249775
Verified (Factored)	2005-02-12	Nicholas	823EE90469E839F7	202082

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-09-27	Oliver Kruse	0317CA07F5561D2D	1	8507317	5	3

History

Date	User	Type	Result
2023-11-02	nordi	NF-PM1	B1=500000, B2=320708850
2023-10-23	nordi	NF-PM1	B1=500000
2022-09-27	Sparky70	CERT	PRP Certification Proof certified good
2022-09-27	Oliver Kruse	C-PRP	M13743533/827377246390384074169 : 0317CA07F5561D2D PRP proof power = 8 PRP: Verified Proof certified good
2022-08-08	nordi	NF-PM1	B1=300000
2016-08-03	Sergey Nosov	F-ECM	Factor: 827377246390384074169 / (ECM curve 1, B1=50000, B2=5000000)
2016-07-01	Tha	NF-PM1	B1=300000, B2=6000000, E=12
2015-08-17	Nesowa	NF	no factor from 2^66 to 2^67
2014-07-02	Nesowa	NF	no factor from 2^65 to 2^66