2 520 979 Exponent Status

PrimeNet Exponent Status

M_n

Details

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

Trial Factored to 2⁷⁵

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
5587158158116673041	19	62.3	2011-03-04 04:33:27

ECM

Digits	B1	Curves
25	50000	151 / 280

Estimated T-Level: 22.7 ⓘ

TF below 2^70 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift	Software
Factored		Richard Workman	6731AF9F220685F3	0	Windows,Prime95,v14,NT service,(aka WQ5)
Factored	1999-04-13	Phillip Twiss	6731AF9F220685F3	106067	Windows,Prime95,v18,(aka WU1)

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-10-14	Oliver Kruse	E7113A2C47F076BB	1	1187682	5	3
Verified	PRP without proof (not generated)	2017-11-30	storm5510	E7113A2C47F076BB	1	203937	5	3

History

Date	User	Type	Result
2024-02-26	MartianPig	NF	no factor TF: 67-68
2024-02-26	MartianPig	NF	no factor TF: 74-75
2024-02-26	MartianPig	NF	no factor TF: 73-74
2024-02-26	MartianPig	NF	no factor TF: 72-73
2024-02-26	MartianPig	NF	no factor TF: 71-72
2024-02-26	MartianPig	NF	no factor TF: 70-71
2024-02-25	MartianPig	NF	no factor TF: 69-70
2024-02-25	MartianPig	NF	no factor TF: 68-69
2024-02-25	MartianPig	F	Factor: 5587158158116673041 / TF: 62-63
2022-09-17	USAFSS	NF-PM1	B1=390000, B2=508533480
2022-03-10	LordJulius	NF	no factor TF: 1-60
2017-11-30	storm5510	C-PRP	M2520979/5587158158116673041 : E7113A2C47F076BB
2017-10-14	Oliver Kruse	C-PRP	M2520979/5587158158116673041 : E7113A2C47F076BB
2011-03-04	James Heinrich	F	Factor: 5587158158116673041
2011-01-06	Joss	NF-PM1	B1=50000
2011-01-01	Joss	NF-PM1	B1=30000
2010-12-19	Joss	NF-PM1	B1=20000
2009-01-31	Sturle Sunde	NF	no factor TF: 60-61
2003-10-31	Team Prime Rib	NF-PM1	B1=15000, B2=236250
2003-10-23	-anonymous-	NF-PM1	B1=2048, B2=204800
1999-04-13	PhillT	C-LL	6731AF9F220685F3
1999-03-15	PhillT	NF	no factor TF: 1-59

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