What is the Greatest Common Factor of 19705 and 19718?

Greatest common factor (GCF) of 19705 and 19718 is 1.

GCF(19705,19718) = 1

We will now calculate the prime factors of 19705 and 19718, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19705 and 19718.

How to find the GCF of 19705 and 19718?

We will first find the prime factorization of 19705 and 19718. After we will calculate the factors of 19705 and 19718 and find the biggest common factor number .

Step-1: Prime Factorization of 19705

Prime factors of 19705 are 5, 7, 563. Prime factorization of 19705 in exponential form is:

19705 = 5¹ × 7¹ × 563¹

Step-2: Prime Factorization of 19718

Prime factors of 19718 are 2, 9859. Prime factorization of 19718 in exponential form is:

19718 = 2¹ × 9859¹

Step-3: Factors of 19705

List of positive integer factors of 19705 that divides 19705 without a remainder.

1, 5, 7, 35, 563, 2815, 3941

Step-4: Factors of 19718

List of positive integer factors of 19718 that divides 19705 without a remainder.

1, 2, 9859

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19705 and 19718. The biggest common factor number is the GCF number.
So the greatest common factor 19705 and 19718 is 1.

Also check out the Least Common Multiple of 19705 and 19718