What is the Greatest Common Factor of 87428 and 87440?

Greatest common factor (GCF) of 87428 and 87440 is 4.

GCF(87428,87440) = 4

We will now calculate the prime factors of 87428 and 87440, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 87428 and 87440.

How to find the GCF of 87428 and 87440?

We will first find the prime factorization of 87428 and 87440. After we will calculate the factors of 87428 and 87440 and find the biggest common factor number .

Step-1: Prime Factorization of 87428

Prime factors of 87428 are 2, 11, 1987. Prime factorization of 87428 in exponential form is:

87428 = 2² × 11¹ × 1987¹

Step-2: Prime Factorization of 87440

Prime factors of 87440 are 2, 5, 1093. Prime factorization of 87440 in exponential form is:

87440 = 2⁴ × 5¹ × 1093¹

Step-3: Factors of 87428

List of positive integer factors of 87428 that divides 87428 without a remainder.

1, 2, 4, 11, 22, 44, 1987, 3974, 7948, 21857, 43714

Step-4: Factors of 87440

List of positive integer factors of 87440 that divides 87428 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1093, 2186, 4372, 5465, 8744, 10930, 17488, 21860, 43720

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 87428 and 87440. The biggest common factor number is the GCF number.
So the greatest common factor 87428 and 87440 is 4.

Also check out the Least Common Multiple of 87428 and 87440