What is the Greatest Common Factor of 21230 and 21244?

Greatest common factor (GCF) of 21230 and 21244 is 2.

GCF(21230,21244) = 2

We will now calculate the prime factors of 21230 and 21244, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21230 and 21244.

How to find the GCF of 21230 and 21244?

We will first find the prime factorization of 21230 and 21244. After we will calculate the factors of 21230 and 21244 and find the biggest common factor number .

Step-1: Prime Factorization of 21230

Prime factors of 21230 are 2, 5, 11, 193. Prime factorization of 21230 in exponential form is:

21230 = 2¹ × 5¹ × 11¹ × 193¹

Step-2: Prime Factorization of 21244

Prime factors of 21244 are 2, 47, 113. Prime factorization of 21244 in exponential form is:

21244 = 2² × 47¹ × 113¹

Step-3: Factors of 21230

List of positive integer factors of 21230 that divides 21230 without a remainder.

1, 2, 5, 10, 11, 22, 55, 110, 193, 386, 965, 1930, 2123, 4246, 10615

Step-4: Factors of 21244

List of positive integer factors of 21244 that divides 21230 without a remainder.

1, 2, 4, 47, 94, 113, 188, 226, 452, 5311, 10622

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21230 and 21244. The biggest common factor number is the GCF number.
So the greatest common factor 21230 and 21244 is 2.

Also check out the Least Common Multiple of 21230 and 21244