What is the Greatest Common Factor of 89978 and 89990?

Greatest common factor (GCF) of 89978 and 89990 is 2.

GCF(89978,89990) = 2

We will now calculate the prime factors of 89978 and 89990, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 89978 and 89990.

How to find the GCF of 89978 and 89990?

We will first find the prime factorization of 89978 and 89990. After we will calculate the factors of 89978 and 89990 and find the biggest common factor number .

Step-1: Prime Factorization of 89978

Prime factors of 89978 are 2, 7, 6427. Prime factorization of 89978 in exponential form is:

89978 = 2¹ × 7¹ × 6427¹

Step-2: Prime Factorization of 89990

Prime factors of 89990 are 2, 5, 8999. Prime factorization of 89990 in exponential form is:

89990 = 2¹ × 5¹ × 8999¹

Step-3: Factors of 89978

List of positive integer factors of 89978 that divides 89978 without a remainder.

1, 2, 7, 14, 6427, 12854, 44989

Step-4: Factors of 89990

List of positive integer factors of 89990 that divides 89978 without a remainder.

1, 2, 5, 10, 8999, 17998, 44995

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 89978 and 89990. The biggest common factor number is the GCF number.
So the greatest common factor 89978 and 89990 is 2.

Also check out the Least Common Multiple of 89978 and 89990