What is the Greatest Common Factor of 33978 and 33998?

Greatest common factor (GCF) of 33978 and 33998 is 2.

GCF(33978,33998) = 2

We will now calculate the prime factors of 33978 and 33998, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 33978 and 33998.

How to find the GCF of 33978 and 33998?

We will first find the prime factorization of 33978 and 33998. After we will calculate the factors of 33978 and 33998 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 33998

Prime factors of 33998 are 2, 89, 191. Prime factorization of 33998 in exponential form is:

33998 = 2¹ × 89¹ × 191¹

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 33998

List of positive integer factors of 33998 that divides 33978 without a remainder.

1, 2, 89, 178, 191, 382, 16999

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 33978 and 33998. The biggest common factor number is the GCF number.
So the greatest common factor 33978 and 33998 is 2.

Also check out the Least Common Multiple of 33978 and 33998