275 921 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
16436788648163773195377415370329	32	103.7	2016-11-23 17:02:20
61643117165059654322968577444543	32	105.6	2022-05-27 18:28:16

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	580 / 640

Estimated T-Level: 29.5 ⓘ

TF below 2^93 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	40C8	0
Verified (Factored)		Unknown	40C8	0
Verified (Factored)		Brian J. Beesley	EA06FD414F2640C8	0
Verified (Factored)		Eivind Triel	EA06FD414F2640C8	212721
Verified (Factored)	2001-11-17	Brian J. Beesley	EA06FD414F2640C8	172742

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-22	Oliver Kruse	7DD154C58D8BDE6E	1	0	1	3
Verified (Factored)	2017-10-12	Oliver Kruse	7DD154C58D8BDE6E	1	160789	1	3
Verified (Factored)	2017-11-06	kkmrkkblmbrbk	7DD154C58D8BDE6E	1	140644	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	81F33603C7BDD1F3	1	235668	5	3
Verified	2022-05-28	SRJ2877	81F33603C7BDD1F3	2	161681	5	3

History

Date	User	Type	Result
2022-05-28	HighMans	CERT	PRP Certification Proof certified good
2022-05-28	SRJ2877	C-PRP	M275921/16436788648163773195377415370329/61643117165059654322968577444543 : 81F33603C7BDD1F3 PRP proof power = 5 PRP: Verified Proof certified good
2022-05-27	debrouxl	F-ECM	Factor: 61643117165059654322968577444543 / (ECM curve 1, B1=250000, B2=36750000, Sigma=1391412775505600)
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2020-04-17	Oliver Kruse	C-PRP	M275921/16436788648163773195377415370329 : 81F33603C7BDD1F3 PRP: Verified (Factored) PRP without proof (small exponent)
2017-11-06	kkmrkkblmbrbk	C-PRP	M275921/16436788648163773195377415370329 : 7DD154C58D8BDE6E PRP: Verified (Factored) PRP without proof (small exponent)
2017-10-12	Oliver Kruse	C-PRP	M275921/16436788648163773195377415370329 : 7DD154C58D8BDE6E PRP: Verified (Factored) PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M275921/16436788648163773195377415370329 : 7DD154C58D8BDE6E PRP: Verified (Factored) PRP without proof (not generated)
2017-09-22	Oliver Kruse	C-PRP	M275921/16436788648163773195377415370329 : 7DD154C58D8BDE6E PRP without proof (not generated)
2016-11-23	GOS	F-ECM	Factor: 16436788648163773195377415370329 / (ECM curve 2, B1=250000, B2=25000000)
2016-02-03	Gordon Spence	NF	no factor from 2^63 to 2^64
2016-02-03	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-08-13	NR	NF	no factor from 2^61 to 2^62
2013-07-01	lycorn	NF	no factor from 2^60 to 2^61
2012-11-27	alpertron	NF-PM1	B1=100000000, B2=2000000000, E=12
2012-02-26	Joss	NF-PM1	B1=2205050
2011-07-24	Joss	NF-PM1	B1=1764040
2011-06-26	Joss	NF-PM1	B1=1058424
2009-01-28	Sturle Sunde	NF	no factor from 2^59 to 2^60
2009-01-01	Sturle Sunde	NF	no factor from 2^58 to 2^59

Username
Password