What is the Greatest Common Factor of 15768 and 15788?

Greatest common factor (GCF) of 15768 and 15788 is 4.

GCF(15768,15788) = 4

We will now calculate the prime factors of 15768 and 15788, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15768 and 15788.

How to find the GCF of 15768 and 15788?

We will first find the prime factorization of 15768 and 15788. After we will calculate the factors of 15768 and 15788 and find the biggest common factor number .

Step-1: Prime Factorization of 15768

Prime factors of 15768 are 2, 3, 73. Prime factorization of 15768 in exponential form is:

15768 = 2³ × 3³ × 73¹

Step-2: Prime Factorization of 15788

Prime factors of 15788 are 2, 3947. Prime factorization of 15788 in exponential form is:

15788 = 2² × 3947¹

Step-3: Factors of 15768

List of positive integer factors of 15768 that divides 15768 without a remainder.

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 73, 108, 146, 216, 219, 292, 438, 584, 657, 876, 1314, 1752, 1971, 2628, 3942, 5256, 7884

Step-4: Factors of 15788

List of positive integer factors of 15788 that divides 15768 without a remainder.

1, 2, 4, 3947, 7894

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15768 and 15788. The biggest common factor number is the GCF number.
So the greatest common factor 15768 and 15788 is 4.

Also check out the Least Common Multiple of 15768 and 15788