What is the Greatest Common Factor of 19678 and 19698?

Greatest common factor (GCF) of 19678 and 19698 is 2.

GCF(19678,19698) = 2

We will now calculate the prime factors of 19678 and 19698, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19678 and 19698.

How to find the GCF of 19678 and 19698?

We will first find the prime factorization of 19678 and 19698. After we will calculate the factors of 19678 and 19698 and find the biggest common factor number .

Step-1: Prime Factorization of 19678

Prime factors of 19678 are 2, 9839. Prime factorization of 19678 in exponential form is:

19678 = 2¹ × 9839¹

Step-2: Prime Factorization of 19698

Prime factors of 19698 are 2, 3, 7, 67. Prime factorization of 19698 in exponential form is:

19698 = 2¹ × 3¹ × 7² × 67¹

Step-3: Factors of 19678

List of positive integer factors of 19678 that divides 19678 without a remainder.

1, 2, 9839

Step-4: Factors of 19698

List of positive integer factors of 19698 that divides 19678 without a remainder.

1, 2, 3, 6, 7, 14, 21, 42, 49, 67, 98, 134, 147, 201, 294, 402, 469, 938, 1407, 2814, 3283, 6566, 9849

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19678 and 19698. The biggest common factor number is the GCF number.
So the greatest common factor 19678 and 19698 is 2.

Also check out the Least Common Multiple of 19678 and 19698