What is the Greatest Common Factor of 22720 and 22740?

Greatest common factor (GCF) of 22720 and 22740 is 20.

GCF(22720,22740) = 20

We will now calculate the prime factors of 22720 and 22740, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 22720 and 22740.

How to find the GCF of 22720 and 22740?

We will first find the prime factorization of 22720 and 22740. After we will calculate the factors of 22720 and 22740 and find the biggest common factor number .

Step-1: Prime Factorization of 22720

Prime factors of 22720 are 2, 5, 71. Prime factorization of 22720 in exponential form is:

22720 = 2⁶ × 5¹ × 71¹

Step-2: Prime Factorization of 22740

Prime factors of 22740 are 2, 3, 5, 379. Prime factorization of 22740 in exponential form is:

22740 = 2² × 3¹ × 5¹ × 379¹

Step-3: Factors of 22720

List of positive integer factors of 22720 that divides 22720 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 1136, 1420, 2272, 2840, 4544, 5680, 11360

Step-4: Factors of 22740

List of positive integer factors of 22740 that divides 22720 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 379, 758, 1137, 1516, 1895, 2274, 3790, 4548, 5685, 7580, 11370

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 22720 and 22740. The biggest common factor number is the GCF number.
So the greatest common factor 22720 and 22740 is 20.

Also check out the Least Common Multiple of 22720 and 22740