What is the Greatest Common Factor of 33978 and 33991?

Greatest common factor (GCF) of 33978 and 33991 is 1.

GCF(33978,33991) = 1

We will now calculate the prime factors of 33978 and 33991, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 33978 and 33991.

How to find the GCF of 33978 and 33991?

We will first find the prime factorization of 33978 and 33991. After we will calculate the factors of 33978 and 33991 and find the biggest common factor number .

Step-1: Prime Factorization of 33978

Prime factors of 33978 are 2, 3, 7, 809. Prime factorization of 33978 in exponential form is:

33978 = 2¹ × 3¹ × 7¹ × 809¹

Step-2: Prime Factorization of 33991

Prime factors of 33991 are 19, 1789. Prime factorization of 33991 in exponential form is:

33991 = 19¹ × 1789¹

Step-3: Factors of 33978

List of positive integer factors of 33978 that divides 33978 without a remainder.

1, 2, 3, 6, 7, 14, 21, 42, 809, 1618, 2427, 4854, 5663, 11326, 16989

Step-4: Factors of 33991

List of positive integer factors of 33991 that divides 33978 without a remainder.

1, 19, 1789

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 33978 and 33991. The biggest common factor number is the GCF number.
So the greatest common factor 33978 and 33991 is 1.

Also check out the Least Common Multiple of 33978 and 33991