1 450 913 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
2405162534584739070624359	25	81.0	2016-08-21 15:29:58

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)		Hardy Pawletta	9F5AD17D1655E704	0
Verified (Factored)	1999-02-14	Bryan Fullerton	9F5AD17D1655E704	599892
Verified (Factored)	2015-07-01	MadPoo	9F5AD17D1655E704	1365773

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-01	Oliver Kruse	D6700C2907C89496	1	0	1	3
Verified	2017-10-27	Chang Chia-Tche	D6700C2907C89496	1	446747	1	3

P-1 factors

Date	Factor	B1	B2
2016-08-21	2405162534584739070624359	2500000	62500000

History

Date	User	Type	Result
2017-10-27	Chang Chia-Tche	C-PRP	M1450913/2405162534584739070624359 : D6700C2907C89496 PRP: Verified PRP without proof (not generated)
2017-10-01	Oliver Kruse	C-PRP	M1450913/2405162534584739070624359 : D6700C2907C89496 PRP: Verified PRP without proof (not generated)
2016-08-21	Bruno Victal	F-PM1	Factor: 2405162534584739070624359 / (P-1, B1=2500000, B2=62500000, E=12)
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2015-09-17	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-01	MadPoo	C-LL	9F5AD17D1655E704
2015-05-22	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2015-03-25	snme2pm1	NF	no factor from 2^64 to 2^65
2015-03-25	snme2pm1	NF	no factor from 2^63 to 2^64
2015-02-09	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-01-30	Joss	NF-PM1	B1=357585
2015-01-28	Joss	NF-PM1	B1=325078
2014-11-17	Joss	NF-PM1	B1=244237
2011-03-08	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-07-29	Rob_Dee	NF-PM1	B1=200000, B2=5000000, E=6
2010-07-28	Rob_Dee	NF-PM1	B1=200000, B2=4000000, E=6
2010-07-27	Rob_Dee	NF-PM1	B1=200000, B2=3000000, E=6
2010-07-26	Rob_Dee	NF-PM1	B1=200000, B2=2000000, E=6
2010-07-25	Rob_Dee	NF-PM1	B1=200000, B2=1000000, E=6
2010-07-24	Rob_Dee	NF-PM1	B1=200000, B2=300000
2010-07-23	Rob_Dee	NF-PM1	B1=100000, B2=200000
2010-05-07	Architects Cubed	NF	no factor from 2^60 to 2^61

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