3 389 521 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
141511903210533110842151	24	76.9	2021-07-03 05:14:56

ECM

Digits	B1	Curves
25	50000	37 / 280

Estimated T-Level: 20.7 ⓘ

TF below 2^64 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Pat Phelan	39AEC4C8CA746A3A	0
Verified (Factored)	1999-06-26	Andrew Haveland-Robinson	39AEC4C8CA746A3A	132685

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-07-04	kutens	2AD8D63DBA697E7D	1	3164134	5	3

History

Date	User	Type	Result
2022-04-10	Joss	NF-PM1	B1=1000000, B2=126668850
2022-04-09	Joss	NF-PM1	B1=1000000
2022-02-25	Joss	NF-PM1	B1=200000
2021-07-04	ky0uraku	CERT	PRP Certification Proof certified good
2021-07-04	kutens	C-PRP	M3389521/141511903210533110842151 : 2AD8D63DBA697E7D PRP proof power = 7 PRP: Verified Proof certified good
2021-07-03	kutens	F-ECM	Factor: 141511903210533110842151 / (ECM curve 1, B1=50000, B2=6800000, Sigma=8456935699089397)
2021-07-01	TJAOI	NF	no factor from 2^68 to 2^69
2021-06-18	mikr	NF-PM1	B1=4000000, B2=150000000, E=12
2021-06-05	Numberwang	NF-PM1	B1=1000000, B2=30000000
2018-09-24	TJAOI	NF	no factor from 2^67 to 2^68
2017-04-02	Joss	NF-PM1	B1=310000, B2=3100000, E=6
2017-03-10	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-02-04	Joss	NF-PM1	B1=193261
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-09-23	Squeeky_Squirrel	NF-PM1	B1=155000, B2=4030000, E=6
2015-04-03	Gordon Spence	NF	no factor from 2^65 to 2^66
2015-02-15	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-15	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-13	Joss	NF-PM1	B1=97872
2014-07-04	Joss	NF-PM1	B1=78936
2012-11-15	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-10-22	USAFSS	NF-PM1	B1=60000, B2=945000, E=6
2011-08-14	Grant McCracken	NF	no factor from 2^61 to 2^62
2009-07-10	Carsten Kossendey	NF-PM1	B1=15000, B2=206250
2009-03-25	S485122	NF	no factor from 2^60 to 2^61

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