# 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

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

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