What is the Greatest Common Factor of 72138 and 72142?

Greatest common factor (GCF) of 72138 and 72142 is 2.

GCF(72138,72142) = 2

We will now calculate the prime factors of 72138 and 72142, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72138 and 72142.

How to find the GCF of 72138 and 72142?

We will first find the prime factorization of 72138 and 72142. After we will calculate the factors of 72138 and 72142 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 72142

Prime factors of 72142 are 2, 7, 5153. Prime factorization of 72142 in exponential form is:

72142 = 2¹ × 7¹ × 5153¹

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 72142

List of positive integer factors of 72142 that divides 72138 without a remainder.

1, 2, 7, 14, 5153, 10306, 36071

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72138 and 72142. The biggest common factor number is the GCF number.
So the greatest common factor 72138 and 72142 is 2.

Also check out the Least Common Multiple of 72138 and 72142