What is the Greatest Common Factor of 23715 and 23720?

Greatest common factor (GCF) of 23715 and 23720 is 5.

GCF(23715,23720) = 5

We will now calculate the prime factors of 23715 and 23720, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 23715 and 23720.

How to find the GCF of 23715 and 23720?

We will first find the prime factorization of 23715 and 23720. After we will calculate the factors of 23715 and 23720 and find the biggest common factor number .

Step-1: Prime Factorization of 23715

Prime factors of 23715 are 3, 5, 17, 31. Prime factorization of 23715 in exponential form is:

23715 = 3² × 5¹ × 17¹ × 31¹

Step-2: Prime Factorization of 23720

Prime factors of 23720 are 2, 5, 593. Prime factorization of 23720 in exponential form is:

23720 = 2³ × 5¹ × 593¹

Step-3: Factors of 23715

List of positive integer factors of 23715 that divides 23715 without a remainder.

1, 3, 5, 9, 15, 17, 31, 45, 51, 85, 93, 153, 155, 255, 279, 465, 527, 765, 1395, 1581, 2635, 4743, 7905

Step-4: Factors of 23720

List of positive integer factors of 23720 that divides 23715 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 593, 1186, 2372, 2965, 4744, 5930, 11860

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 23715 and 23720. The biggest common factor number is the GCF number.
So the greatest common factor 23715 and 23720 is 5.

Also check out the Least Common Multiple of 23715 and 23720