What is the Greatest Common Factor of 15447 and 15456?

Greatest common factor (GCF) of 15447 and 15456 is 3.

GCF(15447,15456) = 3

We will now calculate the prime factors of 15447 and 15456, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15447 and 15456.

How to find the GCF of 15447 and 15456?

We will first find the prime factorization of 15447 and 15456. After we will calculate the factors of 15447 and 15456 and find the biggest common factor number .

Step-1: Prime Factorization of 15447

Prime factors of 15447 are 3, 19, 271. Prime factorization of 15447 in exponential form is:

15447 = 3¹ × 19¹ × 271¹

Step-2: Prime Factorization of 15456

Prime factors of 15456 are 2, 3, 7, 23. Prime factorization of 15456 in exponential form is:

15456 = 2⁵ × 3¹ × 7¹ × 23¹

Step-3: Factors of 15447

List of positive integer factors of 15447 that divides 15447 without a remainder.

1, 3, 19, 57, 271, 813, 5149

Step-4: Factors of 15456

List of positive integer factors of 15456 that divides 15447 without a remainder.

1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 32, 42, 46, 48, 56, 69, 84, 92, 96, 112, 138, 161, 168, 184, 224, 276, 322, 336, 368, 483, 552, 644, 672, 736, 966, 1104, 1288, 1932, 2208, 2576, 3864, 5152, 7728

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15447 and 15456. The biggest common factor number is the GCF number.
So the greatest common factor 15447 and 15456 is 3.

Also check out the Least Common Multiple of 15447 and 15456