What is the Greatest Common Factor of 8215 and 8221?

Greatest common factor (GCF) of 8215 and 8221 is 1.

GCF(8215,8221) = 1

We will now calculate the prime factors of 8215 and 8221, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 8215 and 8221.

How to find the GCF of 8215 and 8221?

We will first find the prime factorization of 8215 and 8221. After we will calculate the factors of 8215 and 8221 and find the biggest common factor number .

Step-1: Prime Factorization of 8215

Prime factors of 8215 are 5, 31, 53. Prime factorization of 8215 in exponential form is:

8215 = 5¹ × 31¹ × 53¹

Step-2: Prime Factorization of 8221

Prime factors of 8221 are 8221. Prime factorization of 8221 in exponential form is:

8221 = 8221¹

Step-3: Factors of 8215

List of positive integer factors of 8215 that divides 8215 without a remainder.

1, 5, 31, 53, 155, 265, 1643

Step-4: Factors of 8221

List of positive integer factors of 8221 that divides 8215 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 8215 and 8221. The biggest common factor number is the GCF number.
So the greatest common factor 8215 and 8221 is 1.

Also check out the Least Common Multiple of 8215 and 8221