What is the Greatest Common Factor of 72990 and 73009?

Greatest common factor (GCF) of 72990 and 73009 is 1.

GCF(72990,73009) = 1

We will now calculate the prime factors of 72990 and 73009, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72990 and 73009.

How to find the GCF of 72990 and 73009?

We will first find the prime factorization of 72990 and 73009. After we will calculate the factors of 72990 and 73009 and find the biggest common factor number .

Step-1: Prime Factorization of 72990

Prime factors of 72990 are 2, 3, 5, 811. Prime factorization of 72990 in exponential form is:

72990 = 2¹ × 3² × 5¹ × 811¹

Step-2: Prime Factorization of 73009

Prime factors of 73009 are 73009. Prime factorization of 73009 in exponential form is:

73009 = 73009¹

Step-3: Factors of 72990

List of positive integer factors of 72990 that divides 72990 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 811, 1622, 2433, 4055, 4866, 7299, 8110, 12165, 14598, 24330, 36495

Step-4: Factors of 73009

List of positive integer factors of 73009 that divides 72990 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72990 and 73009. The biggest common factor number is the GCF number.
So the greatest common factor 72990 and 73009 is 1.

Also check out the Least Common Multiple of 72990 and 73009