What is the Greatest Common Factor of 18939 and 18951?

Greatest common factor (GCF) of 18939 and 18951 is 3.

GCF(18939,18951) = 3

We will now calculate the prime factors of 18939 and 18951, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18939 and 18951.

How to find the GCF of 18939 and 18951?

We will first find the prime factorization of 18939 and 18951. After we will calculate the factors of 18939 and 18951 and find the biggest common factor number .

Step-1: Prime Factorization of 18939

Prime factors of 18939 are 3, 59, 107. Prime factorization of 18939 in exponential form is:

18939 = 3¹ × 59¹ × 107¹

Step-2: Prime Factorization of 18951

Prime factors of 18951 are 3, 6317. Prime factorization of 18951 in exponential form is:

18951 = 3¹ × 6317¹

Step-3: Factors of 18939

List of positive integer factors of 18939 that divides 18939 without a remainder.

1, 3, 59, 107, 177, 321, 6313

Step-4: Factors of 18951

List of positive integer factors of 18951 that divides 18939 without a remainder.

1, 3, 6317

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18939 and 18951. The biggest common factor number is the GCF number.
So the greatest common factor 18939 and 18951 is 3.

Also check out the Least Common Multiple of 18939 and 18951