What is the Greatest Common Factor of 40443 and 40456?

Greatest common factor (GCF) of 40443 and 40456 is 13.

GCF(40443,40456) = 13

We will now calculate the prime factors of 40443 and 40456, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40443 and 40456.

How to find the GCF of 40443 and 40456?

We will first find the prime factorization of 40443 and 40456. After we will calculate the factors of 40443 and 40456 and find the biggest common factor number .

Step-1: Prime Factorization of 40443

Prime factors of 40443 are 3, 13, 17, 61. Prime factorization of 40443 in exponential form is:

40443 = 3¹ × 13¹ × 17¹ × 61¹

Step-2: Prime Factorization of 40456

Prime factors of 40456 are 2, 13, 389. Prime factorization of 40456 in exponential form is:

40456 = 2³ × 13¹ × 389¹

Step-3: Factors of 40443

List of positive integer factors of 40443 that divides 40443 without a remainder.

1, 3, 13, 17, 39, 51, 61, 183, 221, 663, 793, 1037, 2379, 3111, 13481

Step-4: Factors of 40456

List of positive integer factors of 40456 that divides 40443 without a remainder.

1, 2, 4, 8, 13, 26, 52, 104, 389, 778, 1556, 3112, 5057, 10114, 20228

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40443 and 40456. The biggest common factor number is the GCF number.
So the greatest common factor 40443 and 40456 is 13.

Also check out the Least Common Multiple of 40443 and 40456