What is the Greatest Common Factor of 65615 and 65620?

Greatest common factor (GCF) of 65615 and 65620 is 5.

GCF(65615,65620) = 5

We will now calculate the prime factors of 65615 and 65620, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 65615 and 65620.

How to find the GCF of 65615 and 65620?

We will first find the prime factorization of 65615 and 65620. After we will calculate the factors of 65615 and 65620 and find the biggest common factor number .

Step-1: Prime Factorization of 65615

Prime factors of 65615 are 5, 11, 1193. Prime factorization of 65615 in exponential form is:

65615 = 5¹ × 11¹ × 1193¹

Step-2: Prime Factorization of 65620

Prime factors of 65620 are 2, 5, 17, 193. Prime factorization of 65620 in exponential form is:

65620 = 2² × 5¹ × 17¹ × 193¹

Step-3: Factors of 65615

List of positive integer factors of 65615 that divides 65615 without a remainder.

1, 5, 11, 55, 1193, 5965, 13123

Step-4: Factors of 65620

List of positive integer factors of 65620 that divides 65615 without a remainder.

1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 193, 340, 386, 772, 965, 1930, 3281, 3860, 6562, 13124, 16405, 32810

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 65615 and 65620. The biggest common factor number is the GCF number.
So the greatest common factor 65615 and 65620 is 5.

Also check out the Least Common Multiple of 65615 and 65620