What is the Greatest Common Factor of 28138 and 28142?

Greatest common factor (GCF) of 28138 and 28142 is 2.

GCF(28138,28142) = 2

We will now calculate the prime factors of 28138 and 28142, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28138 and 28142.

How to find the GCF of 28138 and 28142?

We will first find the prime factorization of 28138 and 28142. After we will calculate the factors of 28138 and 28142 and find the biggest common factor number .

Step-1: Prime Factorization of 28138

Prime factors of 28138 are 2, 11, 1279. Prime factorization of 28138 in exponential form is:

28138 = 2¹ × 11¹ × 1279¹

Step-2: Prime Factorization of 28142

Prime factors of 28142 are 2, 14071. Prime factorization of 28142 in exponential form is:

28142 = 2¹ × 14071¹

Step-3: Factors of 28138

List of positive integer factors of 28138 that divides 28138 without a remainder.

1, 2, 11, 22, 1279, 2558, 14069

Step-4: Factors of 28142

List of positive integer factors of 28142 that divides 28138 without a remainder.

1, 2, 14071

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28138 and 28142. The biggest common factor number is the GCF number.
So the greatest common factor 28138 and 28142 is 2.

Also check out the Least Common Multiple of 28138 and 28142