1 445 057 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
853765811062021628323889839	27	89.5	2017-11-21 11:39:23

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)		Werner Bahlke	FBD2A2FB64E25BCA	0
Verified (Factored)	1999-03-15	Michael Bryan	FBD2A2FB64E25BCA	1350241
Verified (Factored)	2015-06-27	MadPoo	FBD2A2FB64E25BCA	606058

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-11-22	Oliver Kruse	D2BC1CCCC7FC0C4B	1	265229	5	3
Verified	2017-11-22	kkmrkkblmbrbk	D2BC1CCCC7FC0C4B	1	1232316	5	3

History

Date	User	Type	Result
2017-11-22	kkmrkkblmbrbk	C-PRP	M1445057/853765811062021628323889839 : D2BC1CCCC7FC0C4B PRP: Verified PRP without proof (not generated)
2017-11-22	Oliver Kruse	C-PRP	M1445057/853765811062021628323889839 : D2BC1CCCC7FC0C4B PRP: Verified PRP without proof (not generated)
2017-11-21	bam	F-ECM	Factor: 853765811062021628323889839 / (ECM curve 2, B1=50000, B2=5000000)
2016-08-27	Bruno Victal	NF-PM1	B1=2500000, B2=62500000, E=12
2016-08-20	Bruno Victal	NF-PM1	B1=2500000, B2=62500000, E=12
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-09-16	ramgeis	NF	no factor from 2^65 to 2^66
2015-06-27	MadPoo	C-LL	FBD2A2FB64E25BCA
2015-05-11	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2015-05-07	Joss	NF-PM1	B1=1020971
2015-05-01	Joss	NF-PM1	B1=928156
2015-04-08	Joss	NF-PM1	B1=767072
2015-03-23	snme2pm1	NF	no factor from 2^64 to 2^65
2015-03-23	snme2pm1	NF	no factor from 2^63 to 2^64
2015-03-10	Joss	NF-PM1	B1=576314
2015-03-03	Joss	NF-PM1	B1=523922
2015-03-02	Joss	NF-PM1	B1=476293
2015-02-13	Joss	NF-PM1	B1=393631
2015-01-30	Joss	NF-PM1	B1=357847
2015-01-27	Joss	NF-PM1	B1=325316
2014-11-17	Joss	NF-PM1	B1=244416
2011-05-07	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-06-24	Rob_Dee	NF-PM1	B1=200000, B2=5000000, E=6
2010-06-23	Rob_Dee	NF-PM1	B1=200000, B2=4000000, E=6
2010-06-22	Rob_Dee	NF-PM1	B1=200000, B2=3000000, E=6
2010-06-21	Rob_Dee	NF-PM1	B1=200000, B2=2000000, E=6
2010-06-20	Rob_Dee	NF-PM1	B1=200000, B2=1000000, E=6
2010-06-19	Rob_Dee	NF-PM1	B1=200000, B2=300000
2010-06-18	Rob_Dee	NF-PM1	B1=100000, B2=200000
2010-05-12	Architects Cubed	NF	no factor from 2^60 to 2^61

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