What is the Greatest Common Factor of 72162 and 72181?

Greatest common factor (GCF) of 72162 and 72181 is 19.

GCF(72162,72181) = 19

We will now calculate the prime factors of 72162 and 72181, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72162 and 72181.

How to find the GCF of 72162 and 72181?

We will first find the prime factorization of 72162 and 72181. After we will calculate the factors of 72162 and 72181 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 72181

Prime factors of 72181 are 19, 29, 131. Prime factorization of 72181 in exponential form is:

72181 = 19¹ × 29¹ × 131¹

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 72181

List of positive integer factors of 72181 that divides 72162 without a remainder.

1, 19, 29, 131, 551, 2489, 3799

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72162 and 72181. The biggest common factor number is the GCF number.
So the greatest common factor 72162 and 72181 is 19.

Also check out the Least Common Multiple of 72162 and 72181