What is the Greatest Common Factor of 72153 and 72162?

Greatest common factor (GCF) of 72153 and 72162 is 9.

GCF(72153,72162) = 9

We will now calculate the prime factors of 72153 and 72162, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72153 and 72162.

How to find the GCF of 72153 and 72162?

We will first find the prime factorization of 72153 and 72162. After we will calculate the factors of 72153 and 72162 and find the biggest common factor number .

Step-1: Prime Factorization of 72153

Prime factors of 72153 are 3, 8017. Prime factorization of 72153 in exponential form is:

72153 = 3² × 8017¹

Step-2: 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-3: Factors of 72153

List of positive integer factors of 72153 that divides 72153 without a remainder.

1, 3, 9, 8017, 24051

Step-4: Factors of 72162

List of positive integer factors of 72162 that divides 72153 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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72153 and 72162. The biggest common factor number is the GCF number.
So the greatest common factor 72153 and 72162 is 9.

Also check out the Least Common Multiple of 72153 and 72162