What is the Greatest Common Factor of 7221 and 7236?

Greatest common factor (GCF) of 7221 and 7236 is 3.

GCF(7221,7236) = 3

We will now calculate the prime factors of 7221 and 7236, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7221 and 7236.

How to find the GCF of 7221 and 7236?

We will first find the prime factorization of 7221 and 7236. After we will calculate the factors of 7221 and 7236 and find the biggest common factor number .

Step-1: Prime Factorization of 7221

Prime factors of 7221 are 3, 29, 83. Prime factorization of 7221 in exponential form is:

7221 = 3¹ × 29¹ × 83¹

Step-2: Prime Factorization of 7236

Prime factors of 7236 are 2, 3, 67. Prime factorization of 7236 in exponential form is:

7236 = 2² × 3³ × 67¹

Step-3: Factors of 7221

List of positive integer factors of 7221 that divides 7221 without a remainder.

1, 3, 29, 83, 87, 249, 2407

Step-4: Factors of 7236

List of positive integer factors of 7236 that divides 7221 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 67, 108, 134, 201, 268, 402, 603, 804, 1206, 1809, 2412, 3618

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7221 and 7236. The biggest common factor number is the GCF number.
So the greatest common factor 7221 and 7236 is 3.

Also check out the Least Common Multiple of 7221 and 7236