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## #1 2014-07-07 21:07:08

burgess
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Registered: 2014-06-26
Posts: 49
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### A problem on logorithms

Needed help to solve calculus 1 problem

How many number of digits present 5pow20, if log2 = 0.301?

What is the procedure to solve these kind of problems?

Thanks

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## #2 2014-07-07 23:35:44

Agnishom
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From: Riemann Sphere
Registered: 2011-01-29
Posts: 22,180
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### Re: A problem on logorithms

Digits in 5^20 = floor(log(5^20))+1= floor(20*log(5))+1

By the way, what is your favorite color?

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'But our love is like the wind. I can't see it but I can feel it.' -A Walk to remember

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## #3 2014-07-21 23:01:40

burgess
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Registered: 2014-06-26
Posts: 49
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Hi Agnishom,