2 188 231 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
1100324412318467545923719	25	79.9	2020-05-04 17:50:10

ECM

Digits	B1	Curves
25	50000	74 / 280

Estimated T-Level: 21.3 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Mark Kness	2C1F292D9131578C	0
Verified (Factored)	1999-02-21	Stephen Wood	2C1F292D9131578C	767352
Verified (Factored)	2018-04-14	kkmrkkblmbrbk	2C1F292D9131578C	1112939

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-05-07	fre_games	2580F4238138BAB4	1	1691613	5	3
Verified	2020-05-08	marssystems	2580F4238138BAB4	1	1447482	5	3

History

Date	User	Type	Result
2020-05-08	marssystems	C-PRP	M2188231/1100324412318467545923719 : 2580F4238138BAB4 PRP: Verified PRP without proof (not generated)
2020-05-07	fre_games	C-PRP	M2188231/1100324412318467545923719 : 2580F4238138BAB4 PRP: Verified PRP without proof (not generated)
2020-05-04	daveward2005	F-ECM	Factor: 1100324412318467545923719 / (ECM curve 2, B1=50000, B2=5000000)
2019-04-15	TJAOI	NF	no factor from 2^67 to 2^68
2018-04-14	kkmrkkblmbrbk	C-LL	2C1F292D9131578C
2018-02-22	mikr	NF-PM1	B1=2500000, B2=125000000, E=12
2016-11-24	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-13	Joss	NF-PM1	B1=442491, B2=4424910, E=6
2016-01-02	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-25	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-25	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-10	Joss	NF-PM1	B1=148664
2014-06-26	-Anonymous-	NF-PM1	B1=119332
2013-12-03	LaurV	NF	no factor from 2^62 to 2^63
2011-01-12	markr	NF-PM1	B1=90000, B2=1620000, E=6
2010-11-08	Joss	NF-PM1	B1=30000
2010-11-04	Joss	NF-PM1	B1=15000
2009-01-08	Sturle Sunde	NF	no factor from 2^61 to 2^62
2009-01-02	Sturle Sunde	NF	no factor from 2^60 to 2^61

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