If we list all the natural numbers from 0 – 40 that are multiples of 3 and 5, we get 15 and 30 only.
The sum of these multiples is 45.
If we list all the natural numbers from 0 – 40 that are multiples of 3 and 5, we get 15 and 30 only.
The sum of these multiples is 45.