What is the Greatest Common Factor of 19705 and 19716?

Greatest common factor (GCF) of 19705 and 19716 is 1.

GCF(19705,19716) = 1

We will now calculate the prime factors of 19705 and 19716, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19705 and 19716.

How to find the GCF of 19705 and 19716?

We will first find the prime factorization of 19705 and 19716. After we will calculate the factors of 19705 and 19716 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 19716

Prime factors of 19716 are 2, 3, 31, 53. Prime factorization of 19716 in exponential form is:

19716 = 2² × 3¹ × 31¹ × 53¹

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 19716

List of positive integer factors of 19716 that divides 19705 without a remainder.

1, 2, 3, 4, 6, 12, 31, 53, 62, 93, 106, 124, 159, 186, 212, 318, 372, 636, 1643, 3286, 4929, 6572, 9858

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19705 and 19716. The biggest common factor number is the GCF number.
So the greatest common factor 19705 and 19716 is 1.

Also check out the Least Common Multiple of 19705 and 19716