2 833 111 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
8209857654852776535287	22	72.8	2021-10-12 12:12:23

ECM

Digits	B1	Curves
25	50000	104 / 280

Estimated T-Level: 21.9 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Joseph Charrier	5E251D83E3E2F0AF	0
Verified (Factored)	1999-06-06	scott alcaide	5E251D83E3E2F0AF	1980888
Verified (Factored)	2018-09-11	kkmrkkblmbrbk	5E251D83E3E2F0AF	1616511

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-10-18	kutens	245FAAB8B974D04E	1	1831951	5	3

History

Date	User	Type	Result
2021-10-18	curtisc	CERT	PRP Certification Proof certified good
2021-10-18	kutens	C-PRP	M2833111/8209857654852776535287 : 245FAAB8B974D04E PRP proof power = 7 PRP: Verified Proof certified good
2021-10-12	Sergey Nosov	F-ECM	Factor: 8209857654852776535287 / (ECM curve 3, B1=50000, B2=5000000)
2021-04-29	TJAOI	NF	no factor from 2^68 to 2^69
2020-01-29	masser	NF-PM1	B1=5000000, B2=200000000, E=12
2019-11-04	masser	NF-PM1	B1=2840000, B2=28400000, E=12
2019-01-04	chuenkit	NF	no factor from 2^67 to 2^68
2018-09-11	kkmrkkblmbrbk	C-LL	5E251D83E3E2F0AF
2017-10-28	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-10-11	Joss	NF-PM1	B1=597196, B2=5971960, E=6
2017-02-25	Joss	NF-PM1	B1=298598, B2=2985980, E=6
2016-12-23	Joss	NF-PM1	B1=207360
2016-12-15	Joss	NF-PM1	B1=172800
2016-09-22	Joss	NF-PM1	B1=120000, B2=3993000
2016-09-21	Joss	NF-PM1	B1=120000, B2=3630000
2016-09-19	Joss	NF-PM1	B1=120000, B2=3300000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-11-30	omylist	NF	no factor from 2^65 to 2^66
2015-04-21	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-21	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-02-13	Grant McCracken	NF	no factor from 2^61 to 2^62
2009-02-14	Sturle Sunde	NF	no factor from 2^60 to 2^61

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