717 797 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
6196885231709724881177	22	72.4	2015-02-24 04:38:03

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	100 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Ken Kriesel	FAC38B4F725A33F4	0
Verified (Factored)		Simon Burge	FAC38B4F725A33F4	0
Verified (Factored)	2003-03-07	Brian J. Beesley	FAC38B4F725A33F4	281422

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-27	Oliver Kruse	885C3C1857532B2D	1	0	1	3
Verified	2017-09-28	Oliver Kruse	885C3C1857532B2D	1	0	1	3
Verified	2017-11-09	kkmrkkblmbrbk	885C3C1857532B2D	1	685188	1	3
Unverified (Reliable)	2020-04-20	Oliver Kruse	62E996D1BFA731__	1	694284	5	3

History

Date	User	Type	Result
2022-12-30	USAFSS	NF-PM1	B1=1500000, B2=3720516030
2020-04-20	Oliver Kruse	C-PRP	M717797/6196885231709724881177 : 62E996D1BFA731__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-11-09	kkmrkkblmbrbk	C-PRP	M717797/6196885231709724881177 : 885C3C1857532B2D PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-28	Oliver Kruse	C-PRP	M717797/6196885231709724881177 : 885C3C1857532B2D PRP: Unverified (Reliable) PRP without proof (not generated)
2017-09-27	Oliver Kruse	C-PRP	M717797/6196885231709724881177 : 885C3C1857532B2D PRP: Unverified (Reliable) PRP without proof (not generated)
2015-02-24	bam	F-ECM	Factor: 6196885231709724881177 / (ECM curve 2, B1=50000, B2=5000000)
2012-10-25	Joss	NF-PM1	B1=2533131
2012-03-20	Joss	NF-PM1	B1=1532002
2011-10-04	Joss	NF-PM1	B1=1021335
2011-09-24	Joss	NF-PM1	B1=510667
2011-02-21	Joss	NF-PM1	B1=400000
2010-06-16	Architects Cubed	NF	no factor from 2^60 to 2^61
2008-10-14	Sturle Sunde	NF	no factor from 2^59 to 2^60
2008-10-14	Sturle Sunde	NF	no factor from 2^58 to 2^59