2 076 967 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

2076967

Factored

Factor	Digits	Bits	Date
262477482443775165591289	24	77.8	2021-12-13 13:15:11

ECM

Digits	B1	Curves
25	50000	203 / 280

Estimated T-Level: 23.6 ⓘ

TF below 2^73 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		John Lloyd	8E3002AD818FE921	0
Verified (Factored)	1999-02-21	Derrick Coetzee	8E3002AD818FE921	240233
Verified (Factored)	2017-06-05	kkmrkkblmbrbk	8E3002AD818FE921	1216917

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-12-13	SRJ2877	79081F2398A3EC3B	1	634852	5	3

History

Date	User	Type	Result
2021-12-14	Jayder	CERT	PRP Certification Proof certified good
2021-12-13	SRJ2877	C-PRP	M2076967/262477482443775165591289 : 79081F2398A3EC3B PRP proof power = 7 PRP: Verified Proof certified good
2021-12-13	mnd9	F-ECM	Factor: 262477482443775165591289 / (ECM curve 4, B1=50000, B2=5000000, Sigma=4026823037916158)
2021-07-29	TJAOI	NF	no factor from 2^68 to 2^69
2019-09-14	mikr	NF-PM1	B1=4000000, B2=200000000, E=12
2019-03-29	chuenkit	NF	no factor from 2^67 to 2^68
2018-02-25	Joss	NF-PM1	B1=2256825, B2=8987300, E=12
2017-06-05	kkmrkkblmbrbk	C-LL	8E3002AD818FE921
2016-09-25	Joss	NF-PM1	B1=2246825, B2=8987300, E=6
2016-09-10	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-07-06	Joss	NF-PM1	B1=2246825, B2=4493650, E=6
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-11-05	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-07	Joss	NF-PM1	B1=2246825
2015-06-25	Joss	NF-PM1	B1=2042569
2015-06-08	Joss	NF-PM1	B1=1856881
2015-05-26	Joss	NF-PM1	B1=1688074
2015-05-22	Joss	NF-PM1	B1=1534613
2015-05-07	Joss	NF-PM1	B1=1395103
2015-05-01	Joss	NF-PM1	B1=1268276
2015-04-08	Joss	NF-PM1	B1=1048163
2015-03-28	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-28	VictordeHollander	NF	no factor from 2^63 to 2^64
2015-03-15	Joss	NF-PM1	B1=866251
2015-03-12	Joss	NF-PM1	B1=787501
2015-03-03	Joss	NF-PM1	B1=715910
2015-02-25	Joss	NF-PM1	B1=650828
2015-02-16	Joss	NF-PM1	B1=591662
2015-02-14	Joss	NF-PM1	B1=537875
2015-02-12	Joss	NF-PM1	B1=444526
2015-02-02	Joss	NF-PM1	B1=276018
2015-02-01	Joss	NF-PM1	B1=250926
2015-01-30	Joss	NF-PM1	B1=228115
2015-01-29	Joss	NF-PM1	B1=207378
2014-11-10	Joss	NF-PM1	B1=165903
2013-09-01	ramgeis	NF	no factor from 2^62 to 2^63
2012-03-16	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-21	James Heinrich	NF-PM1	B1=135000, B2=3071250, E=6
2011-01-07	Joss	NF-PM1	B1=50000
2010-12-28	Joss	NF-PM1	B1=30000
2009-07-25	USAFSS	NF-PM1	B1=20000, B2=260000
2009-01-02	Sturle Sunde	NF	no factor from 2^60 to 2^61

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