What is the Greatest Common Factor of 67281 and 67290?

Greatest common factor (GCF) of 67281 and 67290 is 3.

GCF(67281,67290) = 3

We will now calculate the prime factors of 67281 and 67290, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 67281 and 67290.

How to find the GCF of 67281 and 67290?

We will first find the prime factorization of 67281 and 67290. After we will calculate the factors of 67281 and 67290 and find the biggest common factor number .

Step-1: Prime Factorization of 67281

Prime factors of 67281 are 3, 41, 547. Prime factorization of 67281 in exponential form is:

67281 = 3¹ × 41¹ × 547¹

Step-2: Prime Factorization of 67290

Prime factors of 67290 are 2, 3, 5, 2243. Prime factorization of 67290 in exponential form is:

67290 = 2¹ × 3¹ × 5¹ × 2243¹

Step-3: Factors of 67281

List of positive integer factors of 67281 that divides 67281 without a remainder.

1, 3, 41, 123, 547, 1641, 22427

Step-4: Factors of 67290

List of positive integer factors of 67290 that divides 67281 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 2243, 4486, 6729, 11215, 13458, 22430, 33645

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 67281 and 67290. The biggest common factor number is the GCF number.
So the greatest common factor 67281 and 67290 is 3.

Also check out the Least Common Multiple of 67281 and 67290