What is the Greatest Common Factor of 19870 and 19877?

Greatest common factor (GCF) of 19870 and 19877 is 1.

GCF(19870,19877) = 1

We will now calculate the prime factors of 19870 and 19877, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19870 and 19877.

How to find the GCF of 19870 and 19877?

We will first find the prime factorization of 19870 and 19877. After we will calculate the factors of 19870 and 19877 and find the biggest common factor number .

Step-1: Prime Factorization of 19870

Prime factors of 19870 are 2, 5, 1987. Prime factorization of 19870 in exponential form is:

19870 = 2¹ × 5¹ × 1987¹

Step-2: Prime Factorization of 19877

Prime factors of 19877 are 11, 13, 139. Prime factorization of 19877 in exponential form is:

19877 = 11¹ × 13¹ × 139¹

Step-3: Factors of 19870

List of positive integer factors of 19870 that divides 19870 without a remainder.

1, 2, 5, 10, 1987, 3974, 9935

Step-4: Factors of 19877

List of positive integer factors of 19877 that divides 19870 without a remainder.

1, 11, 13, 139, 143, 1529, 1807

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19870 and 19877. The biggest common factor number is the GCF number.
So the greatest common factor 19870 and 19877 is 1.

Also check out the Least Common Multiple of 19870 and 19877