What is the Greatest Common Factor of 19201 and 19220?

Greatest common factor (GCF) of 19201 and 19220 is 1.

GCF(19201,19220) = 1

We will now calculate the prime factors of 19201 and 19220, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19201 and 19220.

How to find the GCF of 19201 and 19220?

We will first find the prime factorization of 19201 and 19220. After we will calculate the factors of 19201 and 19220 and find the biggest common factor number .

Step-1: Prime Factorization of 19201

Prime factors of 19201 are 7, 13, 211. Prime factorization of 19201 in exponential form is:

19201 = 7¹ × 13¹ × 211¹

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 19201

List of positive integer factors of 19201 that divides 19201 without a remainder.

1, 7, 13, 91, 211, 1477, 2743

Step-4: Factors of 19220

List of positive integer factors of 19220 that divides 19201 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 19201 and 19220. The biggest common factor number is the GCF number.
So the greatest common factor 19201 and 19220 is 1.

Also check out the Least Common Multiple of 19201 and 19220