It's been a long time for me and I'm stumped. How do I arrive at:

Question

Odd numbers = 603, 22221, 24689?
Even numbers = 67000, 99992?

Thanks

Answer 1

Look at the last digit in each number.

Even numbers can be divided evenly by 2 -- as 2, 4, 6, 8, 10, etc.

Odd numbers cannot.