What is the Greatest Common Factor of 5215 and 5220?

Greatest common factor (GCF) of 5215 and 5220 is 5.

GCF(5215,5220) = 5

We will now calculate the prime factors of 5215 and 5220, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 5215 and 5220.

How to find the GCF of 5215 and 5220?

We will first find the prime factorization of 5215 and 5220. After we will calculate the factors of 5215 and 5220 and find the biggest common factor number .

Step-1: Prime Factorization of 5215

Prime factors of 5215 are 5, 7, 149. Prime factorization of 5215 in exponential form is:

5215 = 5¹ × 7¹ × 149¹

Step-2: Prime Factorization of 5220

Prime factors of 5220 are 2, 3, 5, 29. Prime factorization of 5220 in exponential form is:

5220 = 2² × 3² × 5¹ × 29¹

Step-3: Factors of 5215

List of positive integer factors of 5215 that divides 5215 without a remainder.

1, 5, 7, 35, 149, 745, 1043

Step-4: Factors of 5220

List of positive integer factors of 5220 that divides 5215 without a remainder.

1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 5215 and 5220. The biggest common factor number is the GCF number.
So the greatest common factor 5215 and 5220 is 5.

Also check out the Least Common Multiple of 5215 and 5220