What is the Greatest Common Factor of 90990 and 90999?

Greatest common factor (GCF) of 90990 and 90999 is 9.

GCF(90990,90999) = 9

We will now calculate the prime factors of 90990 and 90999, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 90990 and 90999.

How to find the GCF of 90990 and 90999?

We will first find the prime factorization of 90990 and 90999. After we will calculate the factors of 90990 and 90999 and find the biggest common factor number .

Step-1: Prime Factorization of 90990

Prime factors of 90990 are 2, 3, 5, 337. Prime factorization of 90990 in exponential form is:

90990 = 2¹ × 3³ × 5¹ × 337¹

Step-2: Prime Factorization of 90999

Prime factors of 90999 are 3, 10111. Prime factorization of 90999 in exponential form is:

90999 = 3² × 10111¹

Step-3: Factors of 90990

List of positive integer factors of 90990 that divides 90990 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 337, 674, 1011, 1685, 2022, 3033, 3370, 5055, 6066, 9099, 10110, 15165, 18198, 30330, 45495

Step-4: Factors of 90999

List of positive integer factors of 90999 that divides 90990 without a remainder.

1, 3, 9, 10111, 30333

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 90990 and 90999. The biggest common factor number is the GCF number.
So the greatest common factor 90990 and 90999 is 9.

Also check out the Least Common Multiple of 90990 and 90999