what are consecutive numbers???

Algebra problems often ask about properties of consecutive numbers. Consecutive means numbers like 1, 2, 3 or 9, 10, 11.

3, 6, 9 are not consecutive numbers, but are consecutive multiples of 3. Basically it means that the numbers are adjacent integers. A question may also ask about consecutive even numbers or consecutive odd numbers. These are numbers like 2, 4, 6, 8, 10 or 13, 15, 17. We take one odd number, then the very next odd number after, etc.