What is the Greatest Common Factor of 42991 and 43006?

Greatest common factor (GCF) of 42991 and 43006 is 1.

GCF(42991,43006) = 1

We will now calculate the prime factors of 42991 and 43006, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42991 and 43006.

How to find the GCF of 42991 and 43006?

We will first find the prime factorization of 42991 and 43006. After we will calculate the factors of 42991 and 43006 and find the biggest common factor number .

Step-1: Prime Factorization of 42991

Prime factors of 42991 are 13, 3307. Prime factorization of 42991 in exponential form is:

42991 = 13¹ × 3307¹

Step-2: Prime Factorization of 43006

Prime factors of 43006 are 2, 21503. Prime factorization of 43006 in exponential form is:

43006 = 2¹ × 21503¹

Step-3: Factors of 42991

List of positive integer factors of 42991 that divides 42991 without a remainder.

1, 13, 3307

Step-4: Factors of 43006

List of positive integer factors of 43006 that divides 42991 without a remainder.

1, 2, 21503

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42991 and 43006. The biggest common factor number is the GCF number.
So the greatest common factor 42991 and 43006 is 1.

Also check out the Least Common Multiple of 42991 and 43006