What is the Greatest Common Factor of 43636 and 43640?

Greatest common factor (GCF) of 43636 and 43640 is 4.

GCF(43636,43640) = 4

We will now calculate the prime factors of 43636 and 43640, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 43636 and 43640.

How to find the GCF of 43636 and 43640?

We will first find the prime factorization of 43636 and 43640. After we will calculate the factors of 43636 and 43640 and find the biggest common factor number .

Step-1: Prime Factorization of 43636

Prime factors of 43636 are 2, 10909. Prime factorization of 43636 in exponential form is:

43636 = 2² × 10909¹

Step-2: Prime Factorization of 43640

Prime factors of 43640 are 2, 5, 1091. Prime factorization of 43640 in exponential form is:

43640 = 2³ × 5¹ × 1091¹

Step-3: Factors of 43636

List of positive integer factors of 43636 that divides 43636 without a remainder.

1, 2, 4, 10909, 21818

Step-4: Factors of 43640

List of positive integer factors of 43640 that divides 43636 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 1091, 2182, 4364, 5455, 8728, 10910, 21820

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 43636 and 43640. The biggest common factor number is the GCF number.
So the greatest common factor 43636 and 43640 is 4.

Also check out the Least Common Multiple of 43636 and 43640