What is the Greatest Common Factor of 985 and 998?

Greatest common factor (GCF) of 985 and 998 is 1.

GCF(985,998) = 1

We will now calculate the prime factors of 985 and 998, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 985 and 998.

How to find the GCF of 985 and 998?

We will first find the prime factorization of 985 and 998. After we will calculate the factors of 985 and 998 and find the biggest common factor number .

Step-1: Prime Factorization of 985

Prime factors of 985 are 5, 197. Prime factorization of 985 in exponential form is:

985 = 5¹ × 197¹

Step-2: Prime Factorization of 998

Prime factors of 998 are 2, 499. Prime factorization of 998 in exponential form is:

998 = 2¹ × 499¹

Step-3: Factors of 985

List of positive integer factors of 985 that divides 985 without a remainder.

1, 5, 197

Step-4: Factors of 998

List of positive integer factors of 998 that divides 985 without a remainder.

1, 2, 499

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 985 and 998. The biggest common factor number is the GCF number.
So the greatest common factor 985 and 998 is 1.

Also check out the Least Common Multiple of 985 and 998