What is the Greatest Common Factor of 7281 and 7287?

Greatest common factor (GCF) of 7281 and 7287 is 3.

GCF(7281,7287) = 3

We will now calculate the prime factors of 7281 and 7287, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7281 and 7287.

How to find the GCF of 7281 and 7287?

We will first find the prime factorization of 7281 and 7287. After we will calculate the factors of 7281 and 7287 and find the biggest common factor number .

Step-1: Prime Factorization of 7281

Prime factors of 7281 are 3, 809. Prime factorization of 7281 in exponential form is:

7281 = 3² × 809¹

Step-2: Prime Factorization of 7287

Prime factors of 7287 are 3, 7, 347. Prime factorization of 7287 in exponential form is:

7287 = 3¹ × 7¹ × 347¹

Step-3: Factors of 7281

List of positive integer factors of 7281 that divides 7281 without a remainder.

1, 3, 9, 809, 2427

Step-4: Factors of 7287

List of positive integer factors of 7287 that divides 7281 without a remainder.

1, 3, 7, 21, 347, 1041, 2429

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7281 and 7287. The biggest common factor number is the GCF number.
So the greatest common factor 7281 and 7287 is 3.

Also check out the Least Common Multiple of 7281 and 7287