3 041 053 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
155906821547513787787779959	27	87.0	2020-10-13 12:59:28

ECM

Digits	B1	Curves
25	50000	18 / 280

Estimated T-Level: 20.3 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-02-12	George Ray	8B67E923F851C2E5	0
Verified (Factored)	1999-05-23	Lou Giacalone	8B67E923F851C2E5	506640

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-10-16	Klaus Nordmann	172D0B2AE0CB536D	1	1543342	5	3
Verified	2020-11-11	Oliver Kruse	172D0B2AE0CB536D	1	778015	5	3

History

Date	User	Type	Result
2022-09-03	Joss	NF-PM1	B1=1206156, B2=223284600
2022-01-06	Joss	NF-PM1	B1=1206156, B2=116447100
2021-01-14	Joss	NF-PM1	B1=304105, B2=3041053, E=6
2021-01-14	Joss	NF-PM1	B1=304105
2020-11-11	ChrMu	CERT	PRP Certification Proof certified good
2020-11-11	Oliver Kruse	C-PRP	M3041053/155906821547513787787779959 : 172D0B2AE0CB536D PRP proof power = 7 PRP: Verified Proof certified good
2020-10-16	Klaus Nordmann	C-PRP	M3041053/155906821547513787787779959 : 172D0B2AE0CB536D PRP proof power = 7 PRP: Verified PRP proof never uploaded
2020-10-13	mnd9	F-ECM	Factor: 155906821547513787787779959 / (ECM curve 3, B1=50000, B2=5000000, Sigma=2058552971268215)
2018-07-22	ramgeis	NF	no factor from 2^67 to 2^68
2017-08-12	mikr	NF-PM1	B1=3000000, B2=100000000, E=12
2017-08-04	Joss	NF-PM1	B1=390000, B2=3900000, E=6
2017-05-04	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-01-04	Joss	NF-PM1	B1=132000
2016-10-12	Squeeky_Squirrel	NF-PM1	B1=195000, B2=5313750, E=6
2015-06-03	Tha	NF	no factor from 2^65 to 2^66
2015-02-07	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-07	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-07	dbaugh	NF	no factor from 2^62 to 2^63
2010-10-29	Sid & Andy	NF	no factor from 2^61 to 2^62
2010-10-07	markr	NF-PM1	B1=110000, B2=2420000, E=6
2009-02-14	Sturle Sunde	NF	no factor from 2^60 to 2^61

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