Number theory

1. Jul 2, 2013

Frank Jumby

Please I have read texts about changing the bases of numbers but still I have difficulties in
doing, may s'body instruct me for example..

Change 3145 to base 8

Thanx..

2. Jul 2, 2013

Bacle2

Why don't you first write 314_5 in base 10 and then transform it to base 8?

3. Jul 2, 2013

MrAnchovy

First convert to base 10. Do you know what the 3 represents in 3145?

4. Jul 2, 2013

MrAnchovy

"Base" here is more specifically called "radix", but the word base is almost always used in English except in advanced academic texts.

5. Jul 4, 2013

SW VandeCarr

Maybe I shouldn't do this, but since this is not the homework forum:

$(3*5^2)+(1*5)+4=?$. Now express the result in base 8. Hint: $100_{8} = 64_{10}=8^2$

Last edited: Jul 4, 2013
6. Jul 4, 2013

HallsofIvy

Ufortunately, after 8 responses, Frank Jumby hasn't responded to any of the questions asked.