What is the Greatest Common Factor of 19210 and 19220?

Greatest common factor (GCF) of 19210 and 19220 is 10.

GCF(19210,19220) = 10

We will now calculate the prime factors of 19210 and 19220, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19210 and 19220.

How to find the GCF of 19210 and 19220?

We will first find the prime factorization of 19210 and 19220. After we will calculate the factors of 19210 and 19220 and find the biggest common factor number .

Step-1: Prime Factorization of 19210

Prime factors of 19210 are 2, 5, 17, 113. Prime factorization of 19210 in exponential form is:

19210 = 2¹ × 5¹ × 17¹ × 113¹

Step-2: Prime Factorization of 19220

Prime factors of 19220 are 2, 5, 31. Prime factorization of 19220 in exponential form is:

19220 = 2² × 5¹ × 31²

Step-3: Factors of 19210

List of positive integer factors of 19210 that divides 19210 without a remainder.

1, 2, 5, 10, 17, 34, 85, 113, 170, 226, 565, 1130, 1921, 3842, 9605

Step-4: Factors of 19220

List of positive integer factors of 19220 that divides 19210 without a remainder.

1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1922, 3844, 4805, 9610

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19210 and 19220. The biggest common factor number is the GCF number.
So the greatest common factor 19210 and 19220 is 10.

Also check out the Least Common Multiple of 19210 and 19220