2 733 371 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
784754937964626083071	21	69.4	2020-10-04 20:22:56

ECM

Digits	B1	Curves
25	50000	48 / 280

Estimated T-Level: 20.9 ⓘ

TF below 2^64 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Robert Clark	3F0242E09ACBE818	0
Verified (Factored)	1999-07-04	Ethan Hansen	3F0242E09ACBE818	2242253
Verified (Factored)	2018-08-09	kkmrkkblmbrbk	3F0242E09ACBE818	158660

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-10-05	Xyzzy	8D2EEDB53FC99C34	1	742217	5	3

History

Date	User	Type	Result
2023-04-18	Kevin_9611	NF-PM1	B1=720000, B2=868549500
2020-10-05	Chelle	CERT	PRP Certification Proof certified good
2020-10-05	Xyzzy	C-PRP	M2733371/784754937964626083071 : 8D2EEDB53FC99C34 PRP proof power = 7 PRP: Verified Proof certified good
2020-10-04	lycorn	F-ECM	Factor: 784754937964626083071 / (ECM curve 2, B1=50000, B2=5000000, Sigma=4596614306025289)
2019-02-15	chuenkit	NF	no factor from 2^67 to 2^68
2018-08-09	kkmrkkblmbrbk	C-LL	3F0242E09ACBE818
2018-07-07	Joss	NF-PM1	B1=600000, B2=6000000, E=6
2017-10-05	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2016-02-02	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-13	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-13	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-04-09	markr	NF	no factor from 2^61 to 2^62
2011-02-28	James Heinrich	NF-PM1	B1=300000, B2=8000000, E=12
2011-01-19	Joss	NF-PM1	B1=50000
2010-12-28	Joss	NF-PM1	B1=30000
2010-12-19	Joss	NF-PM1	B1=20000
2009-01-28	Sturle Sunde	NF	no factor from 2^60 to 2^61