What is the Greatest Common Factor of 72162 and 72178?

Greatest common factor (GCF) of 72162 and 72178 is 2.

GCF(72162,72178) = 2

We will now calculate the prime factors of 72162 and 72178, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72162 and 72178.

How to find the GCF of 72162 and 72178?

We will first find the prime factorization of 72162 and 72178. After we will calculate the factors of 72162 and 72178 and find the biggest common factor number .

Step-1: Prime Factorization of 72162

Prime factors of 72162 are 2, 3, 19, 211. Prime factorization of 72162 in exponential form is:

72162 = 2¹ × 3² × 19¹ × 211¹

Step-2: Prime Factorization of 72178

Prime factors of 72178 are 2, 151, 239. Prime factorization of 72178 in exponential form is:

72178 = 2¹ × 151¹ × 239¹

Step-3: Factors of 72162

List of positive integer factors of 72162 that divides 72162 without a remainder.

1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 211, 342, 422, 633, 1266, 1899, 3798, 4009, 8018, 12027, 24054, 36081

Step-4: Factors of 72178

List of positive integer factors of 72178 that divides 72162 without a remainder.

1, 2, 151, 239, 302, 478, 36089

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72162 and 72178. The biggest common factor number is the GCF number.
So the greatest common factor 72162 and 72178 is 2.

Also check out the Least Common Multiple of 72162 and 72178