What is the Greatest Common Factor of 66243 and 66247?

Greatest common factor (GCF) of 66243 and 66247 is 1.

GCF(66243,66247) = 1

We will now calculate the prime factors of 66243 and 66247, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66243 and 66247.

How to find the GCF of 66243 and 66247?

We will first find the prime factorization of 66243 and 66247. After we will calculate the factors of 66243 and 66247 and find the biggest common factor number .

Step-1: Prime Factorization of 66243

Prime factors of 66243 are 3, 71, 311. Prime factorization of 66243 in exponential form is:

66243 = 3¹ × 71¹ × 311¹

Step-2: Prime Factorization of 66247

Prime factors of 66247 are 31, 2137. Prime factorization of 66247 in exponential form is:

66247 = 31¹ × 2137¹

Step-3: Factors of 66243

List of positive integer factors of 66243 that divides 66243 without a remainder.

1, 3, 71, 213, 311, 933, 22081

Step-4: Factors of 66247

List of positive integer factors of 66247 that divides 66243 without a remainder.

1, 31, 2137

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66243 and 66247. The biggest common factor number is the GCF number.
So the greatest common factor 66243 and 66247 is 1.

Also check out the Least Common Multiple of 66243 and 66247