What is the Greatest Common Factor of 18724 and 18728?

Greatest common factor (GCF) of 18724 and 18728 is 4.

GCF(18724,18728) = 4

We will now calculate the prime factors of 18724 and 18728, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18724 and 18728.

How to find the GCF of 18724 and 18728?

We will first find the prime factorization of 18724 and 18728. After we will calculate the factors of 18724 and 18728 and find the biggest common factor number .

Step-1: Prime Factorization of 18724

Prime factors of 18724 are 2, 31, 151. Prime factorization of 18724 in exponential form is:

18724 = 2² × 31¹ × 151¹

Step-2: Prime Factorization of 18728

Prime factors of 18728 are 2, 2341. Prime factorization of 18728 in exponential form is:

18728 = 2³ × 2341¹

Step-3: Factors of 18724

List of positive integer factors of 18724 that divides 18724 without a remainder.

1, 2, 4, 31, 62, 124, 151, 302, 604, 4681, 9362

Step-4: Factors of 18728

List of positive integer factors of 18728 that divides 18724 without a remainder.

1, 2, 4, 8, 2341, 4682, 9364

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18724 and 18728. The biggest common factor number is the GCF number.
So the greatest common factor 18724 and 18728 is 4.

Also check out the Least Common Multiple of 18724 and 18728