Harikrishnan Balagopal

Euler 1 - Multiples of 3 or 5

If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23. Find the sum of all the multiples of 3 or 5 below 1000.

const N = 1000;
let sum = 0;
for (let i = 0; i < N; i++) {
    if(i % 3 === 0 || i % 5 === 0) sum += i;
}
console.log('sum', sum);