2 248 739 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
52641467512136389138103	23	75.5	2020-04-23 21:22:06

ECM

Digits	B1	Curves
25	50000	63 / 280

Estimated T-Level: 21.1 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		John Borleis III	72EF05C506C2531B	0
Verified (Factored)	1999-03-01	Paolo Fani	72EF05C506C2531B	1600
Verified (Factored)	2018-04-22	kkmrkkblmbrbk	72EF05C506C2531B	786860

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-04-23	ATH	566DF7A3F974CBC3	1	2043376	5	3
Verified	2020-04-24	atrench	566DF7A3F974CBC3	1	1809641	5	3
Verified	2020-04-26	GAN	566DF7A3F974CBC3	1	716722	5	3

History

Date	User	Type	Result
2020-04-26	GAN	C-PRP	M2248739/52641467512136389138103 : 566DF7A3F974CBC3 PRP: Verified PRP without proof (not generated)
2020-04-24	atrench	C-PRP	M2248739/52641467512136389138103 : 566DF7A3F974CBC3 PRP: Verified PRP without proof (not generated)
2020-04-23	ATH	C-PRP	M2248739/52641467512136389138103 : 566DF7A3F974CBC3 PRP: Verified PRP without proof (not generated)
2020-04-23	mnd9	F-ECM	Factor: 52641467512136389138103 / (ECM curve 3, B1=50000, B2=5000000, Sigma=8803631337653677)
2019-03-25	TJAOI	NF	no factor from 2^67 to 2^68
2018-04-22	kkmrkkblmbrbk	C-LL	72EF05C506C2531B
2017-01-13	Conductor	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-12-06	Alexander Dubrovin	NF-PM1	B1=1000000, B2=20000000, E=12
2015-10-27	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-10	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-10	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-03	Joss	NF-PM1	B1=142084
2014-06-01	Joss	NF-PM1	B1=113542
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-05-04	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-14	Oscar Östlin	NF-PM1	B1=85000, B2=1636250, E=6
2010-11-11	Oscar Östlin	NF-PM1	B1=75011
2010-11-06	Joss	NF-PM1	B1=15000
2009-01-10	Sturle Sunde	NF	no factor from 2^60 to 2^61

Username
Password