What is the Greatest Common Factor of 72138 and 72157?

Greatest common factor (GCF) of 72138 and 72157 is 1.

GCF(72138,72157) = 1

We will now calculate the prime factors of 72138 and 72157, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72138 and 72157.

How to find the GCF of 72138 and 72157?

We will first find the prime factorization of 72138 and 72157. After we will calculate the factors of 72138 and 72157 and find the biggest common factor number .

Step-1: Prime Factorization of 72138

Prime factors of 72138 are 2, 3, 11, 1093. Prime factorization of 72138 in exponential form is:

72138 = 2¹ × 3¹ × 11¹ × 1093¹

Step-2: Prime Factorization of 72157

Prime factors of 72157 are 59, 1223. Prime factorization of 72157 in exponential form is:

72157 = 59¹ × 1223¹

Step-3: Factors of 72138

List of positive integer factors of 72138 that divides 72138 without a remainder.

1, 2, 3, 6, 11, 22, 33, 66, 1093, 2186, 3279, 6558, 12023, 24046, 36069

Step-4: Factors of 72157

List of positive integer factors of 72157 that divides 72138 without a remainder.

1, 59, 1223

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72138 and 72157. The biggest common factor number is the GCF number.
So the greatest common factor 72138 and 72157 is 1.

Also check out the Least Common Multiple of 72138 and 72157