Problem
https://projecteuler.net/problem=3
The prime factors of 13195 are 5, 7, 13 and 29.
What is the largest prime factor of the number 600851475143?
Answer: 6857
Solution
module.exports = {
answer : () => {
answer = 2;
point = 3;
divisor = 600851475143;
while(divisor != 1) {
while( (divisor % 2) == 0) { divisor /= 2; }
while ((divisor % point) == 0) {
answer = point;
divisor /= point;
}
point += 2;
}
return answer;
}
};