What is the Greatest Common Factor of 21756 and 21773?

Greatest common factor (GCF) of 21756 and 21773 is 1.

GCF(21756,21773) = 1

We will now calculate the prime factors of 21756 and 21773, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21756 and 21773.

How to find the GCF of 21756 and 21773?

We will first find the prime factorization of 21756 and 21773. After we will calculate the factors of 21756 and 21773 and find the biggest common factor number .

Step-1: Prime Factorization of 21756

Prime factors of 21756 are 2, 3, 7, 37. Prime factorization of 21756 in exponential form is:

21756 = 2² × 3¹ × 7² × 37¹

Step-2: Prime Factorization of 21773

Prime factors of 21773 are 21773. Prime factorization of 21773 in exponential form is:

21773 = 21773¹

Step-3: Factors of 21756

List of positive integer factors of 21756 that divides 21756 without a remainder.

1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 49, 74, 84, 98, 111, 147, 148, 196, 222, 259, 294, 444, 518, 588, 777, 1036, 1554, 1813, 3108, 3626, 5439, 7252, 10878

Step-4: Factors of 21773

List of positive integer factors of 21773 that divides 21756 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21756 and 21773. The biggest common factor number is the GCF number.
So the greatest common factor 21756 and 21773 is 1.

Also check out the Least Common Multiple of 21756 and 21773