What is the Greatest Common Factor of 18966 and 18972?

Greatest common factor (GCF) of 18966 and 18972 is 6.

GCF(18966,18972) = 6

We will now calculate the prime factors of 18966 and 18972, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18966 and 18972.

How to find the GCF of 18966 and 18972?

We will first find the prime factorization of 18966 and 18972. After we will calculate the factors of 18966 and 18972 and find the biggest common factor number .

Step-1: Prime Factorization of 18966

Prime factors of 18966 are 2, 3, 29, 109. Prime factorization of 18966 in exponential form is:

18966 = 2¹ × 3¹ × 29¹ × 109¹

Step-2: Prime Factorization of 18972

Prime factors of 18972 are 2, 3, 17, 31. Prime factorization of 18972 in exponential form is:

18972 = 2² × 3² × 17¹ × 31¹

Step-3: Factors of 18966

List of positive integer factors of 18966 that divides 18966 without a remainder.

1, 2, 3, 6, 29, 58, 87, 109, 174, 218, 327, 654, 3161, 6322, 9483

Step-4: Factors of 18972

List of positive integer factors of 18972 that divides 18966 without a remainder.

1, 2, 3, 4, 6, 9, 12, 17, 18, 31, 34, 36, 51, 62, 68, 93, 102, 124, 153, 186, 204, 279, 306, 372, 527, 558, 612, 1054, 1116, 1581, 2108, 3162, 4743, 6324, 9486

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18966 and 18972. The biggest common factor number is the GCF number.
So the greatest common factor 18966 and 18972 is 6.

Also check out the Least Common Multiple of 18966 and 18972