What is the Greatest Common Factor of 72142 and 72158?

Greatest common factor (GCF) of 72142 and 72158 is 2.

GCF(72142,72158) = 2

We will now calculate the prime factors of 72142 and 72158, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72142 and 72158.

How to find the GCF of 72142 and 72158?

We will first find the prime factorization of 72142 and 72158. After we will calculate the factors of 72142 and 72158 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 72158

Prime factors of 72158 are 2, 109, 331. Prime factorization of 72158 in exponential form is:

72158 = 2¹ × 109¹ × 331¹

Step-3: Factors of 72142

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

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

Step-4: Factors of 72158

List of positive integer factors of 72158 that divides 72142 without a remainder.

1, 2, 109, 218, 331, 662, 36079

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72142 and 72158. The biggest common factor number is the GCF number.
So the greatest common factor 72142 and 72158 is 2.

Also check out the Least Common Multiple of 72142 and 72158