What is the Greatest Common Factor of 18220 and 18236?

Greatest common factor (GCF) of 18220 and 18236 is 4.

GCF(18220,18236) = 4

We will now calculate the prime factors of 18220 and 18236, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18220 and 18236.

How to find the GCF of 18220 and 18236?

We will first find the prime factorization of 18220 and 18236. After we will calculate the factors of 18220 and 18236 and find the biggest common factor number .

Step-1: Prime Factorization of 18220

Prime factors of 18220 are 2, 5, 911. Prime factorization of 18220 in exponential form is:

18220 = 2² × 5¹ × 911¹

Step-2: Prime Factorization of 18236

Prime factors of 18236 are 2, 47, 97. Prime factorization of 18236 in exponential form is:

18236 = 2² × 47¹ × 97¹

Step-3: Factors of 18220

List of positive integer factors of 18220 that divides 18220 without a remainder.

1, 2, 4, 5, 10, 20, 911, 1822, 3644, 4555, 9110

Step-4: Factors of 18236

List of positive integer factors of 18236 that divides 18220 without a remainder.

1, 2, 4, 47, 94, 97, 188, 194, 388, 4559, 9118

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18220 and 18236. The biggest common factor number is the GCF number.
So the greatest common factor 18220 and 18236 is 4.

Also check out the Least Common Multiple of 18220 and 18236