What is the Greatest Common Factor of 45705 and 45720?

Greatest common factor (GCF) of 45705 and 45720 is 15.

GCF(45705,45720) = 15

We will now calculate the prime factors of 45705 and 45720, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 45705 and 45720.

How to find the GCF of 45705 and 45720?

We will first find the prime factorization of 45705 and 45720. After we will calculate the factors of 45705 and 45720 and find the biggest common factor number .

Step-1: Prime Factorization of 45705

Prime factors of 45705 are 3, 5, 11, 277. Prime factorization of 45705 in exponential form is:

45705 = 3¹ × 5¹ × 11¹ × 277¹

Step-2: Prime Factorization of 45720

Prime factors of 45720 are 2, 3, 5, 127. Prime factorization of 45720 in exponential form is:

45720 = 2³ × 3² × 5¹ × 127¹

Step-3: Factors of 45705

List of positive integer factors of 45705 that divides 45705 without a remainder.

1, 3, 5, 11, 15, 33, 55, 165, 277, 831, 1385, 3047, 4155, 9141, 15235

Step-4: Factors of 45720

List of positive integer factors of 45720 that divides 45705 without a remainder.

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 127, 180, 254, 360, 381, 508, 635, 762, 1016, 1143, 1270, 1524, 1905, 2286, 2540, 3048, 3810, 4572, 5080, 5715, 7620, 9144, 11430, 15240, 22860

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 45705 and 45720. The biggest common factor number is the GCF number.
So the greatest common factor 45705 and 45720 is 15.

Also check out the Least Common Multiple of 45705 and 45720