2 855 233 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
10068349245933529834453616647529095759	38	122.9	2022-06-22 11:11:49

ECM

Digits	B1	Curves
25	50000	118 / 280

Estimated T-Level: 22.1 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Mikael Billberg	347BB501E5BC6301	0
Verified (Factored)	1999-05-02	Bruce Mitchell	347BB501E5BC6301	1168798
Verified (Factored)	2018-09-18	kkmrkkblmbrbk	347BB501E5BC6301	321179

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-06-28	Funky Waddle	F6CF9AADA63B604A	1	427860	5	3

P-1 factors

Date	Factor	B1	B2
2022-06-22	10068349245933529834453616647529095759	10000000	19223759100

History

Date	User	Type	Result
2022-06-28	Ali Ben Hadj Khalifa	CERT	PRP Certification Proof certified good
2022-06-28	Funky Waddle	C-PRP	M2855233/10068349245933529834453616647529095759 : F6CF9AADA63B604A PRP proof power = 7 PRP: Verified Proof certified good
2022-06-22	mikr	F-PM1	Factor: 10068349245933529834453616647529095759 / (P-1, B1=10000000, B2=19223759100)
2021-06-28	TJAOI	NF	no factor from 2^68 to 2^69
2019-10-28	masser	NF-PM1	B1=2860000, B2=28600000, E=12
2019-01-07	chuenkit	NF	no factor from 2^67 to 2^68
2018-09-18	kkmrkkblmbrbk	C-LL	347BB501E5BC6301
2017-11-12	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-06-28	Joss	NF-PM1	B1=390000, B2=3900000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-16	ramgeis	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
2013-01-07	dbaugh	NF	no factor from 2^62 to 2^63
2012-02-05	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-02-21	Carsten Kossendey	NF-PM1	B1=195000, B2=4875000, E=6
2011-01-26	Joss	NF-PM1	B1=50000
2010-12-23	Joss	NF-PM1	B1=20000
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=157500
2009-02-13	Sturle Sunde	NF	no factor from 2^60 to 2^61

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