What is the Greatest Common Factor of 65187 and 65205?

Greatest common factor (GCF) of 65187 and 65205 is 9.

GCF(65187,65205) = 9

We will now calculate the prime factors of 65187 and 65205, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 65187 and 65205.

How to find the GCF of 65187 and 65205?

We will first find the prime factorization of 65187 and 65205. After we will calculate the factors of 65187 and 65205 and find the biggest common factor number .

Step-1: Prime Factorization of 65187

Prime factors of 65187 are 3, 7243. Prime factorization of 65187 in exponential form is:

65187 = 3² × 7243¹

Step-2: Prime Factorization of 65205

Prime factors of 65205 are 3, 5, 7, 23. Prime factorization of 65205 in exponential form is:

65205 = 3⁴ × 5¹ × 7¹ × 23¹

Step-3: Factors of 65187

List of positive integer factors of 65187 that divides 65187 without a remainder.

1, 3, 9, 7243, 21729

Step-4: Factors of 65205

List of positive integer factors of 65205 that divides 65187 without a remainder.

1, 3, 5, 7, 9, 15, 21, 23, 27, 35, 45, 63, 69, 81, 105, 115, 135, 161, 189, 207, 315, 345, 405, 483, 567, 621, 805, 945, 1035, 1449, 1863, 2415, 2835, 3105, 4347, 7245, 9315, 13041, 21735

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 65187 and 65205. The biggest common factor number is the GCF number.
So the greatest common factor 65187 and 65205 is 9.

Also check out the Least Common Multiple of 65187 and 65205