What is the Greatest Common Factor of 15628 and 15638?

Greatest common factor (GCF) of 15628 and 15638 is 2.

GCF(15628,15638) = 2

We will now calculate the prime factors of 15628 and 15638, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15628 and 15638.

How to find the GCF of 15628 and 15638?

We will first find the prime factorization of 15628 and 15638. After we will calculate the factors of 15628 and 15638 and find the biggest common factor number .

Step-1: Prime Factorization of 15628

Prime factors of 15628 are 2, 3907. Prime factorization of 15628 in exponential form is:

15628 = 2² × 3907¹

Step-2: Prime Factorization of 15638

Prime factors of 15638 are 2, 7, 1117. Prime factorization of 15638 in exponential form is:

15638 = 2¹ × 7¹ × 1117¹

Step-3: Factors of 15628

List of positive integer factors of 15628 that divides 15628 without a remainder.

1, 2, 4, 3907, 7814

Step-4: Factors of 15638

List of positive integer factors of 15638 that divides 15628 without a remainder.

1, 2, 7, 14, 1117, 2234, 7819

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15628 and 15638. The biggest common factor number is the GCF number.
So the greatest common factor 15628 and 15638 is 2.

Also check out the Least Common Multiple of 15628 and 15638