What is the Greatest Common Factor of 73215 and 73220?

Greatest common factor (GCF) of 73215 and 73220 is 5.

GCF(73215,73220) = 5

We will now calculate the prime factors of 73215 and 73220, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 73215 and 73220.

How to find the GCF of 73215 and 73220?

We will first find the prime factorization of 73215 and 73220. After we will calculate the factors of 73215 and 73220 and find the biggest common factor number .

Step-1: Prime Factorization of 73215

Prime factors of 73215 are 3, 5, 1627. Prime factorization of 73215 in exponential form is:

73215 = 3² × 5¹ × 1627¹

Step-2: Prime Factorization of 73220

Prime factors of 73220 are 2, 5, 7, 523. Prime factorization of 73220 in exponential form is:

73220 = 2² × 5¹ × 7¹ × 523¹

Step-3: Factors of 73215

List of positive integer factors of 73215 that divides 73215 without a remainder.

1, 3, 5, 9, 15, 45, 1627, 4881, 8135, 14643, 24405

Step-4: Factors of 73220

List of positive integer factors of 73220 that divides 73215 without a remainder.

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 523, 1046, 2092, 2615, 3661, 5230, 7322, 10460, 14644, 18305, 36610

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 73215 and 73220. The biggest common factor number is the GCF number.
So the greatest common factor 73215 and 73220 is 5.

Also check out the Least Common Multiple of 73215 and 73220