2 227 339 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
35297274722839676415065519209	29	94.8	2021-11-22 13:10:45

ECM

Digits	B1	Curves
25	50000	183 / 280

Estimated T-Level: 23.3 ⓘ

TF below 2^72 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Andrew M. Inggs	F21F38841B5C086D	0
Verified (Factored)	1999-03-01	Carl Mikkelsen	F21F38841B5C086D	410331
Verified (Factored)	2018-04-20	kkmrkkblmbrbk	F21F38841B5C086D	872117

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-11-22	SRJ2877	144AC3C99B4E0B8D	1	941852	5	3

History

Date	User	Type	Result
2021-11-22	Torchwood Institute	CERT	PRP Certification Proof certified good
2021-11-22	SRJ2877	C-PRP	M2227339/35297274722839676415065519209 : 144AC3C99B4E0B8D PRP proof power = 7 PRP: Verified Proof certified good
2021-11-22	Sergey Nosov	F-ECM	Factor: 35297274722839676415065519209 / (ECM curve 6, B1=50000, B2=5000000)
2021-08-12	TJAOI	NF	no factor from 2^68 to 2^69
2019-04-15	TJAOI	NF	no factor from 2^67 to 2^68
2018-04-20	kkmrkkblmbrbk	C-LL	F21F38841B5C086D
2016-12-23	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
2015-12-25	Alexander Dubrovin	NF-PM1	B1=2000000, B2=65000000, E=12
2015-11-22	Alexander Dubrovin	NF-PM1	B1=1600000, B2=7000000, E=6
2015-11-22	Alexander Dubrovin	NF-PM1	B1=1000000, B2=5000000, E=6
2015-10-25	ramgeis	NF	no factor from 2^65 to 2^66
2015-05-04	Squeeky_Squirrel	NF-PM1	B1=160000, B2=4600000, E=6
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
2014-09-29	Joss	NF-PM1	B1=142634
2014-05-26	Joss	NF-PM1	B1=113817
2013-12-03	LaurV	NF	no factor from 2^62 to 2^63
2012-04-20	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-13	Oscar Östlin	NF-PM1	B1=85000, B2=1615000, E=6
2010-10-22	Oscar Östlin	NF-PM1	B1=75011
2009-01-11	Sturle Sunde	NF	no factor from 2^60 to 2^61

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