7 123 733 Exponent Status

PrimeNet Exponent Status

M_n

Details

Composite, with 1 known prime factor. Cofactor is composite.

Trial Factored to 2⁶⁹

TF target 2⁶⁷

Factored

Factor	Digits	Bits	Date
354127244000294892137	21	68.3	2020-04-17 08:26:34

ECM

Digits	B1	Curves
25	50000	6 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift	Software
Factored	2001-02-25	Werner Durandi/Reto Keiser	8666062631EC2DD1	5631151	Windows,Prime95,v20,(aka WW1)
Factored	2002-04-28	chris clark	8666062631EC2DD1	6300807	Linux 32-bit,Prime95,v21,(aka WX2)

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2020-04-18	trebor	5F9AB7C88DD7F033	1	5246554	5	3
Verified	PRP without proof (not generated)	2020-04-18	oodaira	5F9AB7C88DD7F033	1	6585363	5	3

History

Date	User	Type	Result
2020-04-18	oodaira	C-PRP	M7123733/354127244000294892137 : 5F9AB7C88DD7F033
2020-04-18	trebor	C-PRP	M7123733/354127244000294892137 : 5F9AB7C88DD7F033
2020-04-17	TJAOI	F	Factor: 354127244000294892137 / TF: 68-69
2018-07-24	ramgeis	NF	no factor TF: 67-68
2016-10-22	Gordon Spence	NF	no factor TF: 66-67
2016-02-23	Mark Rose	NF	no factor TF: 62-63
2015-06-21	VictordeHollander	NF	no factor TF: 65-66
2014-08-19	Nesowa	NF-PM1	B1=445000, B2=11792500, E=12
2014-02-08	lycorn	NF	no factor TF: 64-65
2014-02-02	Nesowa	NF	no factor TF: 63-64
2002-04-28	-anonymous-	C-LL	8666062631EC2DD1
2001-02-25	-anonymous-	C-LL	8666062631EC2DD1
2001-02-11	-anonymous-	NF-PM1	B1=80000, B2=1000000
1999-09-30	RonnyKarl	C-LL	E7D56C4A279261__
1999-06-15	RonnyKarl	C-LL	E7D56C4A279261__
1999-01-29	-anonymous-	NF	no factor TF: 1-62
1999-01-17	-anonymous-	NF	no factor TF: 1-62
1999-01-10	-anonymous-	NF	no factor TF: 1-62
1998-09-20	-anonymous-	NF	no factor TF: 1-62
1998-06-01	-anonymous-	NF	no factor TF: 1-61

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