What is the Greatest Common Factor of 4247 and 4257?

Greatest common factor (GCF) of 4247 and 4257 is 1.

GCF(4247,4257) = 1

We will now calculate the prime factors of 4247 and 4257, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 4247 and 4257.

How to find the GCF of 4247 and 4257?

We will first find the prime factorization of 4247 and 4257. After we will calculate the factors of 4247 and 4257 and find the biggest common factor number .

Step-1: Prime Factorization of 4247

Prime factors of 4247 are 31, 137. Prime factorization of 4247 in exponential form is:

4247 = 31¹ × 137¹

Step-2: Prime Factorization of 4257

Prime factors of 4257 are 3, 11, 43. Prime factorization of 4257 in exponential form is:

4257 = 3² × 11¹ × 43¹

Step-3: Factors of 4247

List of positive integer factors of 4247 that divides 4247 without a remainder.

1, 31, 137

Step-4: Factors of 4257

List of positive integer factors of 4257 that divides 4247 without a remainder.

1, 3, 9, 11, 33, 43, 99, 129, 387, 473, 1419

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 4247 and 4257. The biggest common factor number is the GCF number.
So the greatest common factor 4247 and 4257 is 1.

Also check out the Least Common Multiple of 4247 and 4257