2427. Number of Common Factors

Given two positive integers a and b, return the number of common factors of a and b.

An integer x is a common factor of a and b if x divides both a and b.

 

Example 1:

Input: a = 12, b = 6
Output: 4
Explanation: The common factors of 12 and 6 are 1, 2, 3, 6.

Example 2:

Input: a = 25, b = 30
Output: 2
Explanation: The common factors of 25 and 30 are 1, 5.

 

 

function commonFactors(a: number, b: number): number {
 let count:number = 0;
 const min:number = Math.min(a , b);
for (let i:number = 1 ; i <= min; ++i) {
    if (a % i == 0 && b % i == 0) count++
    };
return count;   
};