109 201 Exponent Status

PrimeNet Exponent Status

M_n

Details

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

Trial Factored to 2⁶⁸

TF target 2⁴⁴

Factored

Factor	Digits	Bits	Date
127768433410509444522855541662161	33	106.7	2017-04-04 18:03:03

P-1 factors

Date	Factors	B1	B2
2017-04-04	127768433410509444522855541662161	100000000	10850124781788

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	806 / 1566

Estimated T-Level: 32.6 ⓘ

TF below 2^103 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift	Software
Factored		Unknown	5860	0	Unknown,(aka U)
Factored		Yuri Sorkin	9775ED3D95A5D860	0	Linux 32-bit,Prime95,v11,(aka WL)
Factored		Brian J. Beesley	9775ED3D95A5D860	0	Mac,John Sweeney,vLL1.0b1,(aka J4)
Factored		Eivind Triel	9775ED3D95A5D860	90400	Windows,Prime95,v24 final,(aka Wc1)
Factored	2016-06-01	MadPoo 🙂	9775ED3D95A5D860	81248	Windows 64-bit,Prime95,v26,(aka We4)

PRP Cofactor

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	No proof (small exponent)	2017-09-22	Oliver Kruse	040D29FCD99F9766	1	0	1	3
Verified	No proof (small exponent)	2017-10-13	kkmrkkblmbrbk	040D29FCD99F9766	1	69482	1	3
Verified	No proof (small exponent)	2020-04-17	Oliver Kruse	6BBBED339659DD69	1	34399	5	3
Verified	Not Uploaded	2022-04-15	LordJulius	6BBBED339659DD69	1	78190	5	3
Verified	Certified Good	2022-11-08	LordJulius	6BBBED339659DD69	1	5645	5	3

History

Date	User	Type	Result
2025-12-16	ViliamF	NF-PM1	B1=100000000, B2=2097943848000
2022-11-08	John Hocking	CERT	Proof certified good
2022-11-08	LordJulius	C-PRP	Proof Certified Good Proof Power: 5
2022-04-15	LordJulius	C-PRP	Proof Not Uploaded Proof Power: 5
2022-03-07	LordJulius	NF	no factor TF: 54-55
2020-04-17	Oliver Kruse	C-PRP	M109201/127768433410509444522855541662161 : 6BBBED339659DD69
2017-10-13	kkmrkkblmbrbk	C-PRP	M109201/127768433410509444522855541662161 : 040D29FCD99F9766
2017-09-22	Oliver Kruse	C-PRP	M109201/127768433410509444522855541662161 : 040D29FCD99F9766
2017-09-21	Oliver Kruse	C-PRP	M109201/127768433410509444522855541662161 : 040D29FCD99F9766
2017-04-04	kkmrkkblmbrbk	F-PM1	Factor: 127768433410509444522855541662161 / B1=100000000, B2=10850124781788
2016-06-01	MadPoo 🙂	C-LL	9775ED3D95A5D860
2016-03-08	Gordon Spence	NF	no factor TF: 63-64
2016-03-08	Gordon Spence	NF	no factor TF: 62-63
2016-02-23	Mark Rose	NF	no factor TF: 57-58
2015-08-13	NR	NF	no factor TF: 61-62
2013-10-05	lycorn	NF	no factor TF: 60-61
2012-12-17	alpertron	NF-PM1	B1=100000000, B2=2000000000, E=12
2009-01-25	Sturle Sunde	NF	no factor TF: 59-60
2009-01-01	Sturle Sunde	NF	no factor TF: 58-59
2006-02-01	Joss	NF-PM1	B1=2000000
2003-09-29	-anonymous-	NF-PM1	B1=262144, B2=26214400, E=12
2003-02-02	-anonymous-	NF-PM1	B1=131072, B2=13107200, E=30
2002-07-20	-anonymous-	NF-PM1	B1=65536, B2=6553600, E=12
2002-06-02	-anonymous-	NF-PM1	B1=32768, B2=3276800
2002-05-05	-anonymous-	NF	no factor TF: 1-57
2001-01-08	-anonymous-	NF-PM1	B1=1000000, B2=25000000
2000-12-14	-anonymous-	NF	no factor TF: 1-56
2000-04-12	-anonymous-	NF	no factor TF: 1-54
1999-09-14	-anonymous-	NF	no factor TF: 52-53

Username
Password