What is the Greatest Common Factor of 61724 and 61728?

Greatest common factor (GCF) of 61724 and 61728 is 4.

GCF(61724,61728) = 4

We will now calculate the prime factors of 61724 and 61728, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61724 and 61728.

How to find the GCF of 61724 and 61728?

We will first find the prime factorization of 61724 and 61728. After we will calculate the factors of 61724 and 61728 and find the biggest common factor number .

Step-1: Prime Factorization of 61724

Prime factors of 61724 are 2, 13, 1187. Prime factorization of 61724 in exponential form is:

61724 = 2² × 13¹ × 1187¹

Step-2: Prime Factorization of 61728

Prime factors of 61728 are 2, 3, 643. Prime factorization of 61728 in exponential form is:

61728 = 2⁵ × 3¹ × 643¹

Step-3: Factors of 61724

List of positive integer factors of 61724 that divides 61724 without a remainder.

1, 2, 4, 13, 26, 52, 1187, 2374, 4748, 15431, 30862

Step-4: Factors of 61728

List of positive integer factors of 61728 that divides 61724 without a remainder.

1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 643, 1286, 1929, 2572, 3858, 5144, 7716, 10288, 15432, 20576, 30864

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61724 and 61728. The biggest common factor number is the GCF number.
So the greatest common factor 61724 and 61728 is 4.

Also check out the Least Common Multiple of 61724 and 61728