What is the Greatest Common Factor of 97985 and 97990?

Greatest common factor (GCF) of 97985 and 97990 is 5.

GCF(97985,97990) = 5

We will now calculate the prime factors of 97985 and 97990, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 97985 and 97990.

How to find the GCF of 97985 and 97990?

We will first find the prime factorization of 97985 and 97990. After we will calculate the factors of 97985 and 97990 and find the biggest common factor number .

Step-1: Prime Factorization of 97985

Prime factors of 97985 are 5, 19597. Prime factorization of 97985 in exponential form is:

97985 = 5¹ × 19597¹

Step-2: Prime Factorization of 97990

Prime factors of 97990 are 2, 5, 41, 239. Prime factorization of 97990 in exponential form is:

97990 = 2¹ × 5¹ × 41¹ × 239¹

Step-3: Factors of 97985

List of positive integer factors of 97985 that divides 97985 without a remainder.

1, 5, 19597

Step-4: Factors of 97990

List of positive integer factors of 97990 that divides 97985 without a remainder.

1, 2, 5, 10, 41, 82, 205, 239, 410, 478, 1195, 2390, 9799, 19598, 48995

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 97985 and 97990. The biggest common factor number is the GCF number.
So the greatest common factor 97985 and 97990 is 5.

Also check out the Least Common Multiple of 97985 and 97990