What is the Greatest Common Factor of 21820 and 21833?

Greatest common factor (GCF) of 21820 and 21833 is 1.

GCF(21820,21833) = 1

We will now calculate the prime factors of 21820 and 21833, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21820 and 21833.

How to find the GCF of 21820 and 21833?

We will first find the prime factorization of 21820 and 21833. After we will calculate the factors of 21820 and 21833 and find the biggest common factor number .

Step-1: Prime Factorization of 21820

Prime factors of 21820 are 2, 5, 1091. Prime factorization of 21820 in exponential form is:

21820 = 2² × 5¹ × 1091¹

Step-2: Prime Factorization of 21833

Prime factors of 21833 are 7, 3119. Prime factorization of 21833 in exponential form is:

21833 = 7¹ × 3119¹

Step-3: Factors of 21820

List of positive integer factors of 21820 that divides 21820 without a remainder.

1, 2, 4, 5, 10, 20, 1091, 2182, 4364, 5455, 10910

Step-4: Factors of 21833

List of positive integer factors of 21833 that divides 21820 without a remainder.

1, 7, 3119

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21820 and 21833. The biggest common factor number is the GCF number.
So the greatest common factor 21820 and 21833 is 1.

Also check out the Least Common Multiple of 21820 and 21833