2 100 001 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

No factors below 2⁷¹

TF target 2⁶²

TF below 2^80 is very unlikely to find new factors due to ECM effort.

P-1

B1 =	5917550
B2 =	11966409000

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	56 / 640

Estimated T-Level: 25.4 ⓘ

Status	Date	User	Residue	Shift
Verified		Jeff Mitchell	9CDF105E9E9FE3B8	0
Verified	1999-02-07	Nick Willis	9CDF105E9E9FE3B8	1631598
Verified	2017-09-19	kkmrkkblmbrbk	9CDF105E9E9FE3B8	673510
Verified	2020-12-20	-Anonymous-	9CDF105E9E9FE3B8	923972

History

Date	User	Type	Result
2024-01-27	Joss	NF-PM1	B1=5917550, B2=11966409000
2024-01-02	Numberwang	NF-PM1	B1=210000, B2=1025551800
2023-12-10	Joss	NF-PM1	B1=2958776, B2=6378884820
2023-11-08	Joss	NF-PM1	B1=2958775, B2=2961609420
2023-07-02	Joss	NF-PM1	B1=1000000, B2=32279582790
2023-07-01	Joss	NF-PM1	B1=1000000, B2=15961695750
2023-06-29	Joss	NF-PM1	B1=1000000, B2=7802764200
2023-05-22	Joss	NF-PM1	B1=1000000, B2=3702033720
2021-06-06	Numberwang	NF-PM1	B1=60000000, B2=1800000000
2020-12-20	-Anonymous-	C-LL	9CDF105E9E9FE3B8
2017-09-19	kkmrkkblmbrbk	C-LL	9CDF105E9E9FE3B8
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-12-23	ramgeis	NF	no factor from 2^70 to 2^71
2014-03-08	Never Odd Or Even	NF	no factor from 2^69 to 2^70
2014-03-08	Never Odd Or Even	NF	no factor from 2^68 to 2^69
2014-03-08	Never Odd Or Even	NF	no factor from 2^67 to 2^68
2014-03-08	Never Odd Or Even	NF	no factor from 2^66 to 2^67
2014-03-08	Never Odd Or Even	NF	no factor from 2^65 to 2^66
2013-10-19	David Campeau	NF	no factor from 2^64 to 2^65
2012-02-16	BloodIce	NF-PM1	B1=50000000
2012-02-10	BloodIce	NF-PM1	B1=10000000
2012-02-05	BloodIce	NF	no factor from 2^63 to 2^64
2012-02-05	BloodIce	NF	no factor from 2^62 to 2^63
2011-06-26	Rob_Dee	NF	no factor from 2^61 to 2^62
2009-07-15	BigBrother	NF-PM1	B1=200000, B2=5000000, E=6
2009-01-03	Sturle Sunde	NF	no factor from 2^60 to 2^61

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