3 115 537 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
15092564022780059209297	23	73.7	2021-04-20 05:39:15

ECM

Digits	B1	Curves
25	50000	53 / 280

Estimated T-Level: 20.9 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Darren Smith	9E9378866AD659D8	0
Verified (Factored)	1999-05-30	John Crider	9E9378866AD659D8	282480

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-04-22	Joe S.	E04B6541FF1C1699	1	2702745	5	3

History

Date	User	Type	Result
2022-02-12	Joss	NF-PM1	B1=1000000, B2=119912100
2021-04-22	Ben Delo	CERT	PRP Certification Proof certified good
2021-04-22	Joe S.	C-PRP	M3115537/15092564022780059209297 : E04B6541FF1C1699 PRP proof power = 7 PRP: Verified Proof certified good
2021-04-20	Zenzoma	F-ECM	Factor: 15092564022780059209297 / (ECM curve 3, B1=50000, B2=5000000, Sigma=6521337516312514)
2020-11-25	axn	NF	no factor from 2^69 to 2^70
2020-11-25	axn	NF	no factor from 2^68 to 2^69
2019-01-21	TJAOI	NF	no factor from 2^67 to 2^68
2018-10-09	mikr	NF-PM1	B1=3000000, B2=100000000, E=12
2018-07-16	Joss	NF-PM1	B1=840000, B2=3360000, E=6
2018-07-15	Joss	NF-PM1	B1=840000, B2=2520000, E=6
2017-04-14	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-10-02	Joss	NF-PM1	B1=105000, B2=2551500, E=6
2016-09-28	Squeeky_Squirrel	NF-PM1	B1=195000, B2=5460000, E=12
2015-06-11	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
2013-01-03	dbaugh	NF	no factor from 2^62 to 2^63
2011-11-24	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-08-25	Squeeky_Squirrel	NF-PM1	B1=105000, B2=2126250, E=6
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=180000
2009-04-14	S485122	NF	no factor from 2^60 to 2^61

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