Thread: Base 5

Does 124(base 5) represent an odd number? How can you determine whether a number is odd by looking at its base-five representation?

Any takers?

Originally Posted by t-lee

Does 124(base 5) represent an odd number? How can you determine whether a number is odd by looking at its base-five representation?

Any takers?

Is,

Is that even or odd?

Hello, t-lee!

Does represent an odd number? . . . no

How can you determine whether a number is odd by looking at its base-five representation?

Since the base is an odd number, it could be tricky.

But there is a simple rule:
. . Even number of odd digits: even
. . .Odd number of odd digits: odd

Originally Posted by Soroban

Since the base is an odd number, it could be tricky.

But there is a simple rule:
. . Even number of odd digits: even
. . .Odd number of odd digits: odd

there is an odd number of odd digits in 124...

Originally Posted by Quick

there is an odd number of odd digits in 124...

Yes, which means that is odd which, in fact, it is. Don't let that 4 on the end fool you. What TPH was trying to say is that
is odd
is even
is even

odd + even + even = odd.

-Dan