Problem #5

Problem link
Solution:

package main

func main() {
    primes := []int{2, 3, 5, 7, 11, 13, 17, 19}
    result := 1
    var divisor int
    for i := range primes {
        divisor = primes[i]
        for divisor <= 20 {
            divisor *= primes[i]
        }
        divisor /= primes[i]
        result *= divisor
    }
    println(result)
}

Result: 232792560
Time: 0m0.003s