What is the Greatest Common Factor of 10890 and 10899?

Greatest common factor (GCF) of 10890 and 10899 is 9.

GCF(10890,10899) = 9

We will now calculate the prime factors of 10890 and 10899, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 10890 and 10899.

How to find the GCF of 10890 and 10899?

We will first find the prime factorization of 10890 and 10899. After we will calculate the factors of 10890 and 10899 and find the biggest common factor number .

Step-1: Prime Factorization of 10890

Prime factors of 10890 are 2, 3, 5, 11. Prime factorization of 10890 in exponential form is:

10890 = 2¹ × 3² × 5¹ × 11²

Step-2: Prime Factorization of 10899

Prime factors of 10899 are 3, 7, 173. Prime factorization of 10899 in exponential form is:

10899 = 3² × 7¹ × 173¹

Step-3: Factors of 10890

List of positive integer factors of 10890 that divides 10890 without a remainder.

1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 121, 165, 198, 242, 330, 363, 495, 605, 726, 990, 1089, 1210, 1815, 2178, 3630, 5445

Step-4: Factors of 10899

List of positive integer factors of 10899 that divides 10890 without a remainder.

1, 3, 7, 9, 21, 63, 173, 519, 1211, 1557, 3633

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 10890 and 10899. The biggest common factor number is the GCF number.
So the greatest common factor 10890 and 10899 is 9.

Also check out the Least Common Multiple of 10890 and 10899