2 211 817 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
114645679226112392180539159	27	86.6	2021-06-02 13:08:30

ECM

Digits	B1	Curves
25	50000	160 / 280

Estimated T-Level: 22.9 ⓘ

TF below 2^71 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-02-24	Aj Comfort Sr.	E9788C165394B5C7	0
Verified (Factored)	1999-02-21	Alexander Zimmermann	E9788C165394B5C7	471835
Verified (Factored)	2018-04-17	kkmrkkblmbrbk	E9788C165394B5C7	1991945

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-06-03	LaurV	8D1D0D7B1EC1EAE8	1	2048324	5	3

History

Date	User	Type	Result
2021-06-03	ANONYMOUS	CERT	PRP Certification Proof certified good
2021-06-03	LaurV	C-PRP	M2211817/114645679226112392180539159 : 8D1D0D7B1EC1EAE8 PRP proof power = 7 PRP: Verified Proof certified good
2021-06-02	kutens	F-ECM	Factor: 114645679226112392180539159 / (ECM curve 2, B1=50000, B2=5150000, Sigma=4218323919282280)
2021-04-15	Dylan Delgado	NF-PM1	B1=10000000, B2=1210000000
2020-01-06	mikr	NF-PM1	B1=5000000, B2=200000000, E=12
2019-04-29	TJAOI	NF	no factor from 2^67 to 2^68
2018-04-17	kkmrkkblmbrbk	C-LL	E9788C165394B5C7
2016-12-12	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-12-10	Alexander Dubrovin	NF-PM1	B1=2000000, B2=65000000, E=12
2015-11-13	Alexander Dubrovin	NF-PM1	B1=1800000, B2=35000000, E=12
2015-11-13	Alexander Dubrovin	NF-PM1	B1=1800000, B2=11000000, E=12
2015-11-13	Alexander Dubrovin	NF-PM1	B1=1600000, B2=8500000, E=12
2015-10-22	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-06	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-06	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-11-13	c10ck3r	NF-PM1	B1=500000, B2=10000000, E=12
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2011-01-08	markr	NF-PM1	B1=90000, B2=1665000, E=6
2010-11-10	Joss	NF-PM1	B1=30000
2010-11-06	-Anonymous-	NF-PM1	B1=15000
2009-01-06	Sturle Sunde	NF	no factor from 2^61 to 2^62
2009-01-03	Sturle Sunde	NF	no factor from 2^60 to 2^61

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