What is the Greatest Common Factor of 1043 and 1057?

Greatest common factor (GCF) of 1043 and 1057 is 7.

GCF(1043,1057) = 7

We will now calculate the prime factors of 1043 and 1057, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1043 and 1057.

How to find the GCF of 1043 and 1057?

We will first find the prime factorization of 1043 and 1057. After we will calculate the factors of 1043 and 1057 and find the biggest common factor number .

Step-1: Prime Factorization of 1043

Prime factors of 1043 are 7, 149. Prime factorization of 1043 in exponential form is:

1043 = 7¹ × 149¹

Step-2: Prime Factorization of 1057

Prime factors of 1057 are 7, 151. Prime factorization of 1057 in exponential form is:

1057 = 7¹ × 151¹

Step-3: Factors of 1043

List of positive integer factors of 1043 that divides 1043 without a remainder.

1, 7, 149

Step-4: Factors of 1057

List of positive integer factors of 1057 that divides 1043 without a remainder.

1, 7, 151

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1043 and 1057. The biggest common factor number is the GCF number.
So the greatest common factor 1043 and 1057 is 7.

Also check out the Least Common Multiple of 1043 and 1057