What is the Greatest Common Factor of 72143 and 72158?

Greatest common factor (GCF) of 72143 and 72158 is 1.

GCF(72143,72158) = 1

We will now calculate the prime factors of 72143 and 72158, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72143 and 72158.

How to find the GCF of 72143 and 72158?

We will first find the prime factorization of 72143 and 72158. After we will calculate the factors of 72143 and 72158 and find the biggest common factor number .

Step-1: Prime Factorization of 72143

Prime factors of 72143 are 19, 3797. Prime factorization of 72143 in exponential form is:

72143 = 19¹ × 3797¹

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 72143

List of positive integer factors of 72143 that divides 72143 without a remainder.

1, 19, 3797

Step-4: Factors of 72158

List of positive integer factors of 72158 that divides 72143 without a remainder.

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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72143 and 72158. The biggest common factor number is the GCF number.
So the greatest common factor 72143 and 72158 is 1.

Also check out the Least Common Multiple of 72143 and 72158