1 060 867 Exponent Status

PrimeNet Exponent Status

M_n

Details

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

Trial Factored to 2⁷¹

TF target 2⁶⁰

Factored

Factor	Digits	Bits	Date
3737351694356543547963047	25	81.6	2017-12-01 13:36:51

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	99 / 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	Software
Factored		Phil Nesser	02A3B625171089D0	0	Windows,Prime95,v11,(aka WC)
Factored		The Grebelius Family	02A3B625171089D0	0	Windows,Prime95,v14,(aka WQ1)
Factored		Cornelius Caesar	02A3B625171089D0	0	Mac,John Sweeney,v1.4,(aka J3)
Factored	2015-11-11	MadPoo 🙂	02A3B625171089D0	138999	Windows 64-bit,Prime95,v26,(aka We4)

Status	Proof	Date	User	Residue	Shift	Type	Base
Factored	Certified Good Power=6	2025-09-01	Kriesel	FC53B66BDF0CB782	0	1	3

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-12-02	kkmrkkblmbrbk	FC53B66BDF0CB782	1	135032	5	3
Verified	PRP without proof (not generated)	2017-12-02	storm5510	FC53B66BDF0CB782	1	899652	5	3

History

Date	User	Type	Result
2025-09-01	RareSaturn	CERT	Proof certified good
2025-09-01	Kriesel	C-PRP	FC53B66BDF0CB782 Proof Certified Good Proof Power: 6
2017-12-02	storm5510	C-PRP	M1060867/3737351694356543547963047 : FC53B66BDF0CB782
2017-12-02	kkmrkkblmbrbk	C-PRP	M1060867/3737351694356543547963047 : FC53B66BDF0CB782
2017-12-01	TJAOI	F-ECM	Factor: 3737351694356543547963047
2016-05-21	Bruno Victal	NF-PM1	B1=2500000, B2=62500000, E=12
2016-04-02	Joss	NF-PM1	B1=1080930
2016-03-23	Joss	NF-PM1	B1=900775
2016-02-23	Mark Rose	NF	no factor TF: 58-60
2015-11-11	MadPoo 🙂	C-LL	02A3B625171089D0
2015-10-16	Bruno Victal	NF-PM1	B1=500000, B2=15000000, E=12
2014-10-22	Joss	NF-PM1	B1=321002
2014-08-07	Joss	NF-PM1	B1=260501
2014-04-01	Never Odd Or Even	NF	no factor TF: 70-71
2013-12-10	Never Odd Or Even	NF	no factor TF: 69-70
2013-12-10	Never Odd Or Even	NF	no factor TF: 68-69
2013-12-10	Never Odd Or Even	NF	no factor TF: 67-68
2013-12-10	Never Odd Or Even	NF	no factor TF: 66-67
2013-12-10	Never Odd Or Even	NF	no factor TF: 65-66
2013-12-10	Never Odd Or Even	NF	no factor TF: 64-65
2013-12-10	Never Odd Or Even	NF	no factor TF: 63-64
2012-10-07	dbaugh	NF	no factor TF: 62-63
2012-01-31	bcp19	NF-PM1	B1=200000, B2=100000000, E=12
2011-12-31	bcp19	NF-PM1	B1=200000, B2=10000000, E=12
2010-11-12	Michael C	NF	no factor TF: 61-62
2009-02-14	Sturle Sunde	NF	no factor TF: 60-61
2003-04-03	-anonymous-	NF	no factor TF: 1-58
2002-01-28	Joss	NF-PM1	B1=100, B2=1000
2001-11-17	-anonymous-	NF	no factor TF: 1-57

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