255 049 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
192924373683962147587896912572938727	36	117.2	2022-09-01 13:45:43

ECM

Estimated T-Level: 34.0 ⓘ

TF below 2^108 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	7280	0
Verified (Factored)		Unknown	7280	0
Verified (Factored)		Brian J. Beesley	E9AC11C09069F280	0
Verified (Factored)		Eivind Triel	E9AC11C09069F280	216820
Verified (Factored)	2001-10-13	Brian J. Beesley	E9AC11C09069F280	228304

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-09-01	Anton Repko	F1E2BF010E921BAE	1	179525	5	3

History

Date	User	Type	Result
2022-09-01	Massimo Cappelli (ik5pwa)	CERT	PRP Certification Proof certified good
2022-09-01	Anton Repko	C-PRP	M255049/192924373683962147587896912572938727 : F1E2BF010E921BAE PRP proof power = 5 PRP: Verified Proof certified good
2022-09-01	Anton Repko	F-ECM	Factor: 192924373683962147587896912572938727 / (ECM curve 470, B1=1000000, B2=2842011315, Sigma=6097256164860161)
2022-04-28	Anton Repko	NF-PM1	B1=1000000000, B2=201454308905850
2022-03-12	Anton Repko	NF	no factor from 2^66 to 2^70
2021-12-15	Seth_Tr	NF-PM1	B1=120000000, B2=59900720880
2021-12-04	Seth_Tr	NF-PM1	B1=40000000, B2=7618731120
2020-01-01	Gordon Spence	NF	no factor from 2^65 to 2^66
2018-03-15	Gordon Spence	NF	no factor from 2^64 to 2^65
2016-05-13	Numberwang	NF-PM1	B1=2852, B2=71300
2016-01-30	Gordon Spence	NF	no factor from 2^63 to 2^64
2016-01-30	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-08-25	NR	NF	no factor from 2^61 to 2^62
2015-01-16	Denial140	NF-PM1	B1=10000000, B2=250000000, E=12
2013-10-14	David Campeau	NF-PM1	B1=2560000, B2=71680000, E=12
2013-07-24	Sid & Andy	NF	no factor from 2^60 to 2^61
2012-02-26	Joss	NF-PM1	B1=2441809
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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