What is the Greatest Common Factor of 28655 and 28670?

Greatest common factor (GCF) of 28655 and 28670 is 5.

GCF(28655,28670) = 5

We will now calculate the prime factors of 28655 and 28670, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28655 and 28670.

How to find the GCF of 28655 and 28670?

We will first find the prime factorization of 28655 and 28670. After we will calculate the factors of 28655 and 28670 and find the biggest common factor number .

Step-1: Prime Factorization of 28655

Prime factors of 28655 are 5, 11, 521. Prime factorization of 28655 in exponential form is:

28655 = 5¹ × 11¹ × 521¹

Step-2: Prime Factorization of 28670

Prime factors of 28670 are 2, 5, 47, 61. Prime factorization of 28670 in exponential form is:

28670 = 2¹ × 5¹ × 47¹ × 61¹

Step-3: Factors of 28655

List of positive integer factors of 28655 that divides 28655 without a remainder.

1, 5, 11, 55, 521, 2605, 5731

Step-4: Factors of 28670

List of positive integer factors of 28670 that divides 28655 without a remainder.

1, 2, 5, 10, 47, 61, 94, 122, 235, 305, 470, 610, 2867, 5734, 14335

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28655 and 28670. The biggest common factor number is the GCF number.
So the greatest common factor 28655 and 28670 is 5.

Also check out the Least Common Multiple of 28655 and 28670