2 270 893 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
8363538070209996317482985156447	31	102.7	2020-10-19 21:25:46

ECM

Digits	B1	Curves
25	50000	111 / 280

Estimated T-Level: 22.0 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Wayne Scott	A6D8E40FB5962BA8	0
Verified (Factored)	1999-05-16	Sean Mathias	A6D8E40FB5962BA8	1891052
Verified (Factored)	2018-04-26	kkmrkkblmbrbk	A6D8E40FB5962BA8	298693

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-10-20	xyuzyz	763C6E9F80A0C4DE	1	980499	5	3
Verified	2020-10-21	kutens	763C6E9F80A0C4DE	1	1280656	5	3

History

Date	User	Type	Result
2020-10-21	M Miller	CERT	PRP Certification Proof certified good
2020-10-21	kutens	C-PRP	M2270893/8363538070209996317482985156447 : 763C6E9F80A0C4DE PRP proof power = 7 PRP: Verified Proof certified good
2020-10-20	xyuzyz	C-PRP	M2270893/8363538070209996317482985156447 : 763C6E9F80A0C4DE PRP: Verified PRP without proof (not generated)
2020-10-19	daveward2005	F-ECM	Factor: 8363538070209996317482985156447 / (ECM curve 4, B1=50000, B2=5000000, Sigma=5087025566158294)
2019-10-01	BigBrother	NF-PM1	B1=3000000, B2=90000000, E=12
2019-04-29	TJAOI	NF	no factor from 2^67 to 2^68
2018-04-26	kkmrkkblmbrbk	C-LL	A6D8E40FB5962BA8
2017-01-15	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-04-13	Joss	NF-PM1	B1=373248, B2=13534834, E=12
2016-04-05	Joss	NF-PM1	B1=373248, B2=6718464, E=12
2016-04-02	Joss	NF-PM1	B1=311040
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-10-31	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-10	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-10	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-09-02	Joss	NF-PM1	B1=128264
2013-12-06	Jerry Hallett	NF	no factor from 2^62 to 2^63
2012-05-06	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-02	markr	NF-PM1	B1=100000, B2=2100000, E=6
2010-11-13	Joss	NF-PM1	B1=30000
2010-11-06	Joss	NF-PM1	B1=15000
2009-01-15	Sturle Sunde	NF	no factor from 2^60 to 2^61

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