1 480 291 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
547440282053303360929	21	68.9	2015-10-24 09:25:23

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		John Lloyd	01A42FE90A6B82A7	0
Verified (Factored)	1998-11-28	daryl lee	01A42FE90A6B82A7	318436
Verified (Factored)	2015-06-27	MadPoo	01A42FE90A6B82A7	1038901

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-30	alpertron	0407D58C1080FF18	1	0	1	3
Verified	2017-10-18	Oliver Kruse	0407D58C1080FF18	1	45127	1	3

History

Date	User	Type	Result
2023-10-21	Anton Tsvetkov	NF-PM1	B1=5000000, B2=1006114200
2017-10-18	Oliver Kruse	C-PRP	M1480291/547440282053303360929 : 0407D58C1080FF18 PRP: Verified PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M1480291/547440282053303360929 : 0407D58C1080FF18 PRP: Verified PRP without proof (not generated)
2015-10-24	Chang Chia-Tche	F-ECM	Factor: 547440282053303360929 / (ECM curve 2, B1=50000, B2=5000000)
2015-09-22	ramgeis	NF	no factor from 2^65 to 2^66
2015-06-27	MadPoo	C-LL	01A42FE90A6B82A7
2015-04-05	snme2pm1	NF	no factor from 2^64 to 2^65
2015-04-05	snme2pm1	NF	no factor from 2^63 to 2^64
2015-03-11	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2015-03-05	Joss	NF-PM1	B1=521655
2015-03-01	Joss	NF-PM1	B1=474232
2015-02-23	Joss	NF-PM1	B1=431120
2015-02-12	Joss	NF-PM1	B1=391928
2015-01-29	Joss	NF-PM1	B1=323909
2015-01-26	Joss	NF-PM1	B1=294463
2014-11-25	Joss	NF-PM1	B1=243359
2011-04-05	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-12-17	Rob_Dee	NF-PM1	B1=200000, B2=5000000, E=6
2010-12-16	Rob_Dee	NF-PM1	B1=200000, B2=4000000, E=6
2010-12-15	Rob_Dee	NF-PM1	B1=200000, B2=3000000, E=6
2010-12-14	Rob_Dee	NF-PM1	B1=200000, B2=2000000, E=6
2010-12-13	Rob_Dee	NF-PM1	B1=200000, B2=1000000, E=6
2010-12-12	Rob_Dee	NF-PM1	B1=200000, B2=300000
2010-12-11	Rob_Dee	NF-PM1	B1=100000, B2=200000
2010-05-05	Architects Cubed	NF	no factor from 2^60 to 2^61

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