What is the Greatest Common Factor of 8240 and 8245?

Greatest common factor (GCF) of 8240 and 8245 is 5.

GCF(8240,8245) = 5

We will now calculate the prime factors of 8240 and 8245, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 8240 and 8245.

How to find the GCF of 8240 and 8245?

We will first find the prime factorization of 8240 and 8245. After we will calculate the factors of 8240 and 8245 and find the biggest common factor number .

Step-1: Prime Factorization of 8240

Prime factors of 8240 are 2, 5, 103. Prime factorization of 8240 in exponential form is:

8240 = 2⁴ × 5¹ × 103¹

Step-2: Prime Factorization of 8245

Prime factors of 8245 are 5, 17, 97. Prime factorization of 8245 in exponential form is:

8245 = 5¹ × 17¹ × 97¹

Step-3: Factors of 8240

List of positive integer factors of 8240 that divides 8240 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120

Step-4: Factors of 8245

List of positive integer factors of 8245 that divides 8240 without a remainder.

1, 5, 17, 85, 97, 485, 1649

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 8240 and 8245. The biggest common factor number is the GCF number.
So the greatest common factor 8240 and 8245 is 5.

Also check out the Least Common Multiple of 8240 and 8245