297 509 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
17348297475207072924764175127	29	93.8	2016-01-06 13:58:11

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	442 / 640

Estimated T-Level: 28.5 ⓘ

TF below 2^90 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	35F4	0
Verified (Factored)		Unknown	35F4	0
Verified (Factored)		Guillermo Ballester Valor	07905ABF1795B5F4	0
Verified (Factored)		Eivind Triel	07905ABF1795B5F4	264218
Verified (Factored)	2001-11-24	Eugene Gogol'	07905ABF1795B5F4	247040

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-22	Oliver Kruse	3EB160D8BDA70E16	1	0	1	3
Verified	2017-10-12	Oliver Kruse	3EB160D8BDA70E16	1	156975	1	3
Verified	2017-11-06	kkmrkkblmbrbk	3EB160D8BDA70E16	1	59673	1	3
Unverified (Reliable)	2020-04-17	Oliver Kruse	343BCA67576E31__	1	192043	5	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2021-04-29	nordi	NF-PP1	Start=6/5, B1=10000000, B2=500000000
2021-04-22	nordi	NF-PP1	Start=2/7, B1=10000000, B2=500000000
2020-04-17	Oliver Kruse	C-PRP	M297509/17348297475207072924764175127 : 343BCA67576E31__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-11-06	kkmrkkblmbrbk	C-PRP	M297509/17348297475207072924764175127 : 3EB160D8BDA70E16 PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-10-12	Oliver Kruse	C-PRP	M297509/17348297475207072924764175127 : 3EB160D8BDA70E16 PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M297509/17348297475207072924764175127 : 3EB160D8BDA70E16 PRP: Unverified (Reliable) PRP without proof (not generated)
2017-09-22	Oliver Kruse	C-PRP	M297509/17348297475207072924764175127 : 3EB160D8BDA70E16 PRP without proof (not generated)
2016-01-06	bam	F-ECM	Factor: 17348297475207072924764175127 / (ECM curve 3, B1=250000, B2=25000000)
2016-01-02	Gordon Spence	NF	no factor from 2^63 to 2^64
2016-01-02	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-08-13	NR	NF	no factor from 2^61 to 2^62
2013-06-16	lycorn	NF	no factor from 2^60 to 2^61
2012-08-17	markr	NF-PM1	B1=12000000, B2=500000000, E=12
2011-08-01	Joss	NF-PM1	B1=1599888
2009-01-24	Sturle Sunde	NF	no factor from 2^59 to 2^60
2009-01-02	Sturle Sunde	NF	no factor from 2^58 to 2^59