209 707 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
24322969868281121530433	23	74.4	2010-04-25 19:45:59
70817049874786605600203374049	29	95.8	2020-11-19 14:22:13

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	607 / 640

Estimated T-Level: 29.7 ⓘ

TF below 2^94 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Chris Haley	1726264C190CFE3F	0
Verified (Factored)		Peter Marksteiner	1726264C190CFE3F	0
Verified (Factored)		Eivind Triel	1726264C190CFE3F	20044
Verified (Factored)	2002-12-25	Brian J. Beesley	1726264C190CFE3F	91528

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-22	Oliver Kruse	DC9224256676C6BF	1	0	1	3
Verified (Factored)	2017-09-22	Oliver Kruse	DC9224256676C6BF	1	0	1	3
Verified (Factored)	2017-11-06	kkmrkkblmbrbk	DC9224256676C6BF	1	129010	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	A0AB4C920E4AAFE0	1	54827	5	3
Verified	2020-11-19	mrh	A0AB4C920E4AAFE0	2	128004	5	3
Verified	2020-11-19	mnd9	A0AB4C920E4AAFE0	2	127163	5	3
Verified	2023-08-03	USAFSS	A0AB4C920E4AAFE0	2	156430	5	3

History

Date	User	Type	Result
2023-08-03	curtisc	CERT	PRP Certification Proof certified good
2023-08-03	USAFSS	C-PRP	M209707/24322969868281121530433/70817049874786605600203374049 : A0AB4C920E4AAFE0 PRP proof power = 5 PRP: Verified Proof certified good
2022-03-07	LordJulius	NF	no factor from 2^57 to 2^58
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2022-02-16	Oliver Kruse	NF-PM1	B1=30000000, B2=10070832992220
2021-05-13	Oliver Kruse	NF-PM1	B1=30000000, B2=3000000000
2020-11-20	Franklin Webber	CERT	PRP Certification Proof certified good
2020-11-19	mnd9	C-PRP	M209707/24322969868281121530433/70817049874786605600203374049 : A0AB4C920E4AAFE0 PRP proof power = 5 PRP: Verified Proof certified good
2020-11-19	mrh	C-PRP	M209707/24322969868281121530433/70817049874786605600203374049 : A0AB4C920E4AAFE0 PRP: Verified PRP without proof (small exponent)
2020-11-19	MarkS	F-ECM	Factor: 70817049874786605600203374049 / (ECM curve 5, B1=250000, B2=25000000, Sigma=6262078709653684)
2020-04-17	Oliver Kruse	C-PRP	M209707/24322969868281121530433 : A0AB4C920E4AAFE0 PRP: Verified PRP without proof (small exponent)
2017-11-06	kkmrkkblmbrbk	C-PRP	M209707/24322969868281121530433 : DC9224256676C6BF PRP: Verified PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M209707/24322969868281121530433 : DC9224256676C6BF PRP: Verified PRP without proof (not generated)
2017-09-22	Oliver Kruse	C-PRP	M209707/24322969868281121530433 : DC9224256676C6BF PRP: Verified PRP without proof (not generated)
2017-09-22	Oliver Kruse	C-PRP	M209707/24322969868281121530433 : DC9224256676C6BF PRP without proof (not generated)
2010-04-25	-Anonymous-	F-ECM	Factor: 24322969868281121530433
2009-03-15	axn	NF-PM1	B1=5000000, B2=200000000, E=12
2009-01-25	Sturle Sunde	NF	no factor from 2^59 to 2^60
2008-12-31	Sturle Sunde	NF	no factor from 2^58 to 2^59