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 Post subject: EquationPosted: Sun, 15 Jan 2012 15:13:22 UTC
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Joined: Sun, 25 Dec 2011 00:28:25 UTC
Posts: 95
Is given

...if I'm right, D should be the correct answer. But I want to know if there's any other way of doing this or not.
Thank you.

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 Post subject: Re: EquationPosted: Sun, 15 Jan 2012 15:30:46 UTC
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Joined: Sun, 24 Jul 2005 20:12:39 UTC
Posts: 3688
Location: Ottawa Ontario
log(18) / log(2) = ~4.17
log(72) / log(2) = ~6.17
log(100)/ log(2) = ~6.64
log(256)/ log(2) = 8.000000000000000000000000000000000000000000.......

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 Post subject: Re: EquationPosted: Sun, 15 Jan 2012 16:53:12 UTC
 Senior Member

Joined: Sun, 25 Dec 2011 00:28:25 UTC
Posts: 95
Denis wrote:
log(18) / log(2) = ~4.17
log(72) / log(2) = ~6.17
log(100)/ log(2) = ~6.64
log(256)/ log(2) = 8.000000000000000000000000000000000000000000.......

I guess you're angry with those zeros about something.

You know what, I was thinking about your advice, wristwatch should be perfect, but only a temporary one, with ball pen
Thanks.

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 Post subject: Re: EquationPosted: Sun, 15 Jan 2012 23:51:55 UTC
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Joined: Mon, 29 Dec 2008 17:49:32 UTC
Posts: 6004
Location: 127.0.0.1, ::1 (avatar courtesy of UDN)
kreshnik wrote:
Denis wrote:
log(18) / log(2) = ~4.17
log(72) / log(2) = ~6.17
log(100)/ log(2) = ~6.64
log(256)/ log(2) = 8.000000000000000000000000000000000000000000.......

I guess you're angry with those zeros about something.

You know what, I was thinking about your advice, wristwatch should be perfect, but only a temporary one, with ball pen
Thanks.

Really, small perfect powers (e.g. those below 1000), or failing that, small perfect prime powers, should be memorised.

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