What is the Greatest Common Factor of 63978 and 63985?

Greatest common factor (GCF) of 63978 and 63985 is 1.

GCF(63978,63985) = 1

We will now calculate the prime factors of 63978 and 63985, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 63978 and 63985.

How to find the GCF of 63978 and 63985?

We will first find the prime factorization of 63978 and 63985. After we will calculate the factors of 63978 and 63985 and find the biggest common factor number .

Step-1: Prime Factorization of 63978

Prime factors of 63978 are 2, 3, 10663. Prime factorization of 63978 in exponential form is:

63978 = 2¹ × 3¹ × 10663¹

Step-2: Prime Factorization of 63985

Prime factors of 63985 are 5, 67, 191. Prime factorization of 63985 in exponential form is:

63985 = 5¹ × 67¹ × 191¹

Step-3: Factors of 63978

List of positive integer factors of 63978 that divides 63978 without a remainder.

1, 2, 3, 6, 10663, 21326, 31989

Step-4: Factors of 63985

List of positive integer factors of 63985 that divides 63978 without a remainder.

1, 5, 67, 191, 335, 955, 12797

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 63978 and 63985. The biggest common factor number is the GCF number.
So the greatest common factor 63978 and 63985 is 1.

Also check out the Least Common Multiple of 63978 and 63985