What is the Greatest Common Factor of 65680 and 65689?

Greatest common factor (GCF) of 65680 and 65689 is 1.

GCF(65680,65689) = 1

We will now calculate the prime factors of 65680 and 65689, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 65680 and 65689.

How to find the GCF of 65680 and 65689?

We will first find the prime factorization of 65680 and 65689. After we will calculate the factors of 65680 and 65689 and find the biggest common factor number .

Step-1: Prime Factorization of 65680

Prime factors of 65680 are 2, 5, 821. Prime factorization of 65680 in exponential form is:

65680 = 2⁴ × 5¹ × 821¹

Step-2: Prime Factorization of 65689

Prime factors of 65689 are 13, 31, 163. Prime factorization of 65689 in exponential form is:

65689 = 13¹ × 31¹ × 163¹

Step-3: Factors of 65680

List of positive integer factors of 65680 that divides 65680 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 821, 1642, 3284, 4105, 6568, 8210, 13136, 16420, 32840

Step-4: Factors of 65689

List of positive integer factors of 65689 that divides 65680 without a remainder.

1, 13, 31, 163, 403, 2119, 5053

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 65680 and 65689. The biggest common factor number is the GCF number.
So the greatest common factor 65680 and 65689 is 1.

Also check out the Least Common Multiple of 65680 and 65689