What is the Greatest Common Factor of 43280 and 43285?

Greatest common factor (GCF) of 43280 and 43285 is 5.

GCF(43280,43285) = 5

We will now calculate the prime factors of 43280 and 43285, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 43280 and 43285.

How to find the GCF of 43280 and 43285?

We will first find the prime factorization of 43280 and 43285. After we will calculate the factors of 43280 and 43285 and find the biggest common factor number .

Step-1: Prime Factorization of 43280

Prime factors of 43280 are 2, 5, 541. Prime factorization of 43280 in exponential form is:

43280 = 2⁴ × 5¹ × 541¹

Step-2: Prime Factorization of 43285

Prime factors of 43285 are 5, 11, 787. Prime factorization of 43285 in exponential form is:

43285 = 5¹ × 11¹ × 787¹

Step-3: Factors of 43280

List of positive integer factors of 43280 that divides 43280 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 541, 1082, 2164, 2705, 4328, 5410, 8656, 10820, 21640

Step-4: Factors of 43285

List of positive integer factors of 43285 that divides 43280 without a remainder.

1, 5, 11, 55, 787, 3935, 8657

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 43280 and 43285. The biggest common factor number is the GCF number.
So the greatest common factor 43280 and 43285 is 5.

Also check out the Least Common Multiple of 43280 and 43285