What is the Greatest Common Factor of 39215 and 39220?

Greatest common factor (GCF) of 39215 and 39220 is 5.

GCF(39215,39220) = 5

We will now calculate the prime factors of 39215 and 39220, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39215 and 39220.

How to find the GCF of 39215 and 39220?

We will first find the prime factorization of 39215 and 39220. After we will calculate the factors of 39215 and 39220 and find the biggest common factor number .

Step-1: Prime Factorization of 39215

Prime factors of 39215 are 5, 11, 23, 31. Prime factorization of 39215 in exponential form is:

39215 = 5¹ × 11¹ × 23¹ × 31¹

Step-2: Prime Factorization of 39220

Prime factors of 39220 are 2, 5, 37, 53. Prime factorization of 39220 in exponential form is:

39220 = 2² × 5¹ × 37¹ × 53¹

Step-3: Factors of 39215

List of positive integer factors of 39215 that divides 39215 without a remainder.

1, 5, 11, 23, 31, 55, 115, 155, 253, 341, 713, 1265, 1705, 3565, 7843

Step-4: Factors of 39220

List of positive integer factors of 39220 that divides 39215 without a remainder.

1, 2, 4, 5, 10, 20, 37, 53, 74, 106, 148, 185, 212, 265, 370, 530, 740, 1060, 1961, 3922, 7844, 9805, 19610

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39215 and 39220. The biggest common factor number is the GCF number.
So the greatest common factor 39215 and 39220 is 5.

Also check out the Least Common Multiple of 39215 and 39220