What is the Greatest Common Factor of 72990 and 72998?

Greatest common factor (GCF) of 72990 and 72998 is 2.

GCF(72990,72998) = 2

We will now calculate the prime factors of 72990 and 72998, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72990 and 72998.

How to find the GCF of 72990 and 72998?

We will first find the prime factorization of 72990 and 72998. After we will calculate the factors of 72990 and 72998 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 72998

Prime factors of 72998 are 2, 17, 19, 113. Prime factorization of 72998 in exponential form is:

72998 = 2¹ × 17¹ × 19¹ × 113¹

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 72998

List of positive integer factors of 72998 that divides 72990 without a remainder.

1, 2, 17, 19, 34, 38, 113, 226, 323, 646, 1921, 2147, 3842, 4294, 36499

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72990 and 72998. The biggest common factor number is the GCF number.
So the greatest common factor 72990 and 72998 is 2.

Also check out the Least Common Multiple of 72990 and 72998