What is the Greatest Common Factor of 10700 and 10720?

Greatest common factor (GCF) of 10700 and 10720 is 20.

GCF(10700,10720) = 20

We will now calculate the prime factors of 10700 and 10720, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 10700 and 10720.

How to find the GCF of 10700 and 10720?

We will first find the prime factorization of 10700 and 10720. After we will calculate the factors of 10700 and 10720 and find the biggest common factor number .

Step-1: Prime Factorization of 10700

Prime factors of 10700 are 2, 5, 107. Prime factorization of 10700 in exponential form is:

10700 = 2² × 5² × 107¹

Step-2: Prime Factorization of 10720

Prime factors of 10720 are 2, 5, 67. Prime factorization of 10720 in exponential form is:

10720 = 2⁵ × 5¹ × 67¹

Step-3: Factors of 10700

List of positive integer factors of 10700 that divides 10700 without a remainder.

1, 2, 4, 5, 10, 20, 25, 50, 100, 107, 214, 428, 535, 1070, 2140, 2675, 5350

Step-4: Factors of 10720

List of positive integer factors of 10720 that divides 10700 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 2144, 2680, 5360

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 10700 and 10720. The biggest common factor number is the GCF number.
So the greatest common factor 10700 and 10720 is 20.

Also check out the Least Common Multiple of 10700 and 10720