What is the Greatest Common Factor of 28260 and 28278?

Greatest common factor (GCF) of 28260 and 28278 is 18.

GCF(28260,28278) = 18

We will now calculate the prime factors of 28260 and 28278, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28260 and 28278.

How to find the GCF of 28260 and 28278?

We will first find the prime factorization of 28260 and 28278. After we will calculate the factors of 28260 and 28278 and find the biggest common factor number .

Step-1: Prime Factorization of 28260

Prime factors of 28260 are 2, 3, 5, 157. Prime factorization of 28260 in exponential form is:

28260 = 2² × 3² × 5¹ × 157¹

Step-2: Prime Factorization of 28278

Prime factors of 28278 are 2, 3, 1571. Prime factorization of 28278 in exponential form is:

28278 = 2¹ × 3² × 1571¹

Step-3: Factors of 28260

List of positive integer factors of 28260 that divides 28260 without a remainder.

1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 785, 942, 1413, 1570, 1884, 2355, 2826, 3140, 4710, 5652, 7065, 9420, 14130

Step-4: Factors of 28278

List of positive integer factors of 28278 that divides 28260 without a remainder.

1, 2, 3, 6, 9, 18, 1571, 3142, 4713, 9426, 14139

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28260 and 28278. The biggest common factor number is the GCF number.
So the greatest common factor 28260 and 28278 is 18.

Also check out the Least Common Multiple of 28260 and 28278