248 051 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
3557816697918221970380770434929	31	101.5	2024-02-29 18:43:32

ECM

Estimated T-Level: 30.8 ⓘ

TF below 2^97 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	1BF0	0
Verified (Factored)		Unknown	1BF0	0
Verified (Factored)		Ken Kiefer	5903B1F83EEB9BF0	0
Verified (Factored)		Brian J. Beesley	5903B1F83EEB9BF0	0
Verified (Factored)		Eivind Triel	5903B1F83EEB9BF0	149785
Verified (Factored)	2016-06-01	MadPoo	5903B1F83EEB9BF0	220244

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2024-02-29	lycorn	00627FC4B43E6585	1	68213	5	3

History

Date	User	Type	Result
2024-02-29	COMPUTRON9001	CERT	PRP Certification Proof certified good
2024-02-29	lycorn	C-PRP	M248051/3557816697918221970380770434929 : 00627FC4B43E6585 PRP proof power = 5 PRP: Verified Proof certified good
2024-02-29	lycorn	F-ECM	Factor: 3557816697918221970380770434929 / (ECM curve 7, B1=1100000, B2=11486399925, Sigma=7636194416848200)
2023-02-11	masser	NF-PP1	Start=6/5, B1=30000000, B2=990000000
2023-02-05	masser	NF-PP1	Start=2/7, B1=30000000, B2=990000000
2023-02-05	masser	NF-PP1	Start=113/17, B1=30000000, B2=960000000
2022-06-20	Sid & Andy	NF-PM1	B1=264000000, B2=2879731624770
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2021-12-05	Seth_Tr	NF-PM1	B1=120000000, B2=57783635910
2021-12-05	Seth_Tr	NF-PM1	B1=120000000
2019-12-31	Gordon Spence	NF	no factor from 2^65 to 2^66
2018-03-12	Gordon Spence	NF	no factor from 2^64 to 2^65
2016-06-01	MadPoo	C-LL	5903B1F83EEB9BF0
2016-05-13	Numberwang	NF-PM1	B1=2774, B2=69350
2016-02-23	Mark Rose	NF	no factor from 2^57 to 2^58
2016-01-25	Gordon Spence	NF	no factor from 2^63 to 2^64
2016-01-25	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-07-26	snme2pm1	NF	no factor from 2^61 to 2^62
2014-12-24	Denial140	NF-PM1	B1=10000000, B2=250000000, E=12
2014-10-14	henryzz	NF-PM1	B1=3000000, B2=60000000, E=12
2013-07-18	lycorn	NF	no factor from 2^60 to 2^61
2012-02-26	Joss	NF-PM1	B1=2531501
2011-07-24	Joss	NF-PM1	B1=2025201
2011-02-07	Joss	NF-PM1	B1=2000000
2009-01-25	Sturle Sunde	NF	no factor from 2^59 to 2^60
2009-01-01	Sturle Sunde	NF	no factor from 2^58 to 2^59

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