What is the Greatest Common Factor of 4405 and 4420?

Greatest common factor (GCF) of 4405 and 4420 is 5.

GCF(4405,4420) = 5

We will now calculate the prime factors of 4405 and 4420, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 4405 and 4420.

How to find the GCF of 4405 and 4420?

We will first find the prime factorization of 4405 and 4420. After we will calculate the factors of 4405 and 4420 and find the biggest common factor number .

Step-1: Prime Factorization of 4405

Prime factors of 4405 are 5, 881. Prime factorization of 4405 in exponential form is:

4405 = 5¹ × 881¹

Step-2: Prime Factorization of 4420

Prime factors of 4420 are 2, 5, 13, 17. Prime factorization of 4420 in exponential form is:

4420 = 2² × 5¹ × 13¹ × 17¹

Step-3: Factors of 4405

List of positive integer factors of 4405 that divides 4405 without a remainder.

1, 5, 881

Step-4: Factors of 4420

List of positive integer factors of 4420 that divides 4405 without a remainder.

1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 4405 and 4420. The biggest common factor number is the GCF number.
So the greatest common factor 4405 and 4420 is 5.

Also check out the Least Common Multiple of 4405 and 4420