What is the Greatest Common Factor of 90981 and 90991?

Greatest common factor (GCF) of 90981 and 90991 is 1.

GCF(90981,90991) = 1

We will now calculate the prime factors of 90981 and 90991, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 90981 and 90991.

How to find the GCF of 90981 and 90991?

We will first find the prime factorization of 90981 and 90991. After we will calculate the factors of 90981 and 90991 and find the biggest common factor number .

Step-1: Prime Factorization of 90981

Prime factors of 90981 are 3, 11, 919. Prime factorization of 90981 in exponential form is:

90981 = 3² × 11¹ × 919¹

Step-2: Prime Factorization of 90991

Prime factors of 90991 are 19, 4789. Prime factorization of 90991 in exponential form is:

90991 = 19¹ × 4789¹

Step-3: Factors of 90981

List of positive integer factors of 90981 that divides 90981 without a remainder.

1, 3, 9, 11, 33, 99, 919, 2757, 8271, 10109, 30327

Step-4: Factors of 90991

List of positive integer factors of 90991 that divides 90981 without a remainder.

1, 19, 4789

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 90981 and 90991. The biggest common factor number is the GCF number.
So the greatest common factor 90981 and 90991 is 1.

Also check out the Least Common Multiple of 90981 and 90991