What is the Greatest Common Factor of 8428 and 8438?

Greatest common factor (GCF) of 8428 and 8438 is 2.

GCF(8428,8438) = 2

We will now calculate the prime factors of 8428 and 8438, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 8428 and 8438.

How to find the GCF of 8428 and 8438?

We will first find the prime factorization of 8428 and 8438. After we will calculate the factors of 8428 and 8438 and find the biggest common factor number .

Step-1: Prime Factorization of 8428

Prime factors of 8428 are 2, 7, 43. Prime factorization of 8428 in exponential form is:

8428 = 2² × 7² × 43¹

Step-2: Prime Factorization of 8438

Prime factors of 8438 are 2, 4219. Prime factorization of 8438 in exponential form is:

8438 = 2¹ × 4219¹

Step-3: Factors of 8428

List of positive integer factors of 8428 that divides 8428 without a remainder.

1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 602, 1204, 2107, 4214

Step-4: Factors of 8438

List of positive integer factors of 8438 that divides 8428 without a remainder.

1, 2, 4219

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 8428 and 8438. The biggest common factor number is the GCF number.
So the greatest common factor 8428 and 8438 is 2.

Also check out the Least Common Multiple of 8428 and 8438