48 809 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
101132249	9	26.6	old
616848143	9	29.2	2008-08-26 20:05:23
2118635699177761	16	50.9	2008-08-26 20:05:24

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	593 / 4588

Estimated T-Level: 35.6 ⓘ

TF below 2^113 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	CCA2D1FD23EE8240	3	0	1	3
Verified	2017-09-21	Oliver Kruse	CCA2D1FD23EE8240	3	0	1	3
Verified	2017-11-06	kkmrkkblmbrbk	CCA2D1FD23EE8240	3	48014	1	3
Unverified	2020-04-17	Oliver Kruse	8239E7B00F3037__	3	26479	5	3

History

Date	User	Type	Result
2023-05-06	JacobZ	NF-PM1	B1=730000000, B2=562856158764900
2021-03-22	Conductor	F-ECM	Factor: 62383239993063607 / (ECM curve 1, B1=1000000, B2=100000000, Sigma=1425385209731872)
2020-04-17	Oliver Kruse	C-PRP	M48809/101132249/616848143/2118635699177761 : 8239E7B00F3037__ PRP without proof (small exponent)
2017-11-06	kkmrkkblmbrbk	C-PRP	M48809/101132249/616848143/2118635699177761 : CCA2D1FD23EE8240 PRP without proof (small exponent)
2017-09-21	Oliver Kruse	C-PRP	M48809/101132249/616848143/2118635699177761 : CCA2D1FD23EE8240 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M48809/101132249/616848143/2118635699177761 : CCA2D1FD23EE8240 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M48809/101132249/616848143/2118635699177761 : CCA2D1FD23EE8240 PRP without proof (not generated)
2016-09-30	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=2000000000, E=12
2008-08-26	-Anonymous-	F-PM1	Factor: 2118635699177761
2008-08-26	-Anonymous-	F	Factor: 616848143