2 803 991 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
9305552766598726191807712873	28	92.9	2020-11-24 20:24:38

ECM

Digits	B1	Curves
25	50000	54 / 280

Estimated T-Level: 21.0 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Chris Quartetti	756D8A75E3B685BE	0
Verified (Factored)	1999-05-02	Matti Kinnunen	756D8A75E3B685BE	327881
Verified (Factored)	2018-09-01	kkmrkkblmbrbk	756D8A75E3B685BE	1068842

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-11-25	mrh	858D3765023377AE	1	14570	5	3

History

Date	User	Type	Result
2021-09-21	Dylan Delgado	NF-PM1	B1=6500000, B2=624000000
2020-11-25	Franklin Webber	CERT	PRP Certification Proof certified good
2020-11-25	mrh	C-PRP	M2803991/9305552766598726191807712873 : 858D3765023377AE PRP proof power = 7 PRP: Verified Proof certified good
2020-11-24	mnd9	F-ECM	Factor: 9305552766598726191807712873 / (ECM curve 3, B1=50000, B2=5000000, Sigma=6026097460485772)
2020-01-02	masser	NF-PM1	B1=5000000, B2=200000000, E=12
2019-11-13	masser	NF-PM1	B1=3000000, B2=30000000, E=12
2018-10-19	Joss	NF-PM1	B1=2803991
2018-09-01	kkmrkkblmbrbk	C-LL	756D8A75E3B685BE
2018-05-18	Yxinity	NF	no factor from 2^69 to 2^70
2018-05-18	Yxinity	NF	no factor from 2^68 to 2^69
2017-10-30	mikr	NF	no factor from 2^67 to 2^68
2017-10-30	mikr	NF	no factor from 2^66 to 2^67
2016-08-01	Joss	NF-PM1	B1=1611043, B2=3222086, E=6
2016-05-08	Numberwang	NF-PM1	B1=15000, B2=135000
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-01-10	omylist	NF	no factor from 2^65 to 2^66
2015-07-07	Joss	NF-PM1	B1=1611043
2015-06-25	Joss	NF-PM1	B1=1464585
2015-06-08	Joss	NF-PM1	B1=1331441
2015-05-22	Joss	NF-PM1	B1=1210401
2015-05-07	Joss	NF-PM1	B1=1100365
2015-05-01	Joss	NF-PM1	B1=1000332
2015-04-25	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-25	VictordeHollander	NF	no factor from 2^63 to 2^64
2015-04-08	Joss	NF-PM1	B1=826721
2015-03-29	Joss	NF-PM1	B1=751565
2015-03-14	Joss	NF-PM1	B1=621129
2015-03-10	Joss	NF-PM1	B1=564663
2015-03-02	Joss	NF-PM1	B1=513330
2015-02-25	Joss	NF-PM1	B1=466664
2015-02-15	Joss	NF-PM1	B1=424240
2015-02-11	Joss	NF-PM1	B1=350612
2015-02-03	Joss	NF-PM1	B1=217704
2015-02-01	Joss	NF-PM1	B1=197913
2015-01-31	Joss	NF-PM1	B1=179921
2015-01-26	Joss	NF-PM1	B1=148696
2014-11-10	Joss	NF-PM1	B1=122890
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-03-01	Grant McCracken	NF	no factor from 2^61 to 2^62
2010-11-20	markr	NF-PM1	B1=100000, B2=2075000, E=6
2010-11-12	Joss	NF-PM1	B1=15000
2009-02-13	Sturle Sunde	NF	no factor from 2^60 to 2^61

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