What is the Greatest Common Factor of 19811 and 19825?

Greatest common factor (GCF) of 19811 and 19825 is 1.

GCF(19811,19825) = 1

We will now calculate the prime factors of 19811 and 19825, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19811 and 19825.

How to find the GCF of 19811 and 19825?

We will first find the prime factorization of 19811 and 19825. After we will calculate the factors of 19811 and 19825 and find the biggest common factor number .

Step-1: Prime Factorization of 19811

Prime factors of 19811 are 11, 1801. Prime factorization of 19811 in exponential form is:

19811 = 11¹ × 1801¹

Step-2: Prime Factorization of 19825

Prime factors of 19825 are 5, 13, 61. Prime factorization of 19825 in exponential form is:

19825 = 5² × 13¹ × 61¹

Step-3: Factors of 19811

List of positive integer factors of 19811 that divides 19811 without a remainder.

1, 11, 1801

Step-4: Factors of 19825

List of positive integer factors of 19825 that divides 19811 without a remainder.

1, 5, 13, 25, 61, 65, 305, 325, 793, 1525, 3965

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19811 and 19825. The biggest common factor number is the GCF number.
So the greatest common factor 19811 and 19825 is 1.

Also check out the Least Common Multiple of 19811 and 19825