What is the Greatest Common Factor of 34405 and 34420?

Greatest common factor (GCF) of 34405 and 34420 is 5.

GCF(34405,34420) = 5

We will now calculate the prime factors of 34405 and 34420, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 34405 and 34420.

How to find the GCF of 34405 and 34420?

We will first find the prime factorization of 34405 and 34420. After we will calculate the factors of 34405 and 34420 and find the biggest common factor number .

Step-1: Prime Factorization of 34405

Prime factors of 34405 are 5, 7, 983. Prime factorization of 34405 in exponential form is:

34405 = 5¹ × 7¹ × 983¹

Step-2: Prime Factorization of 34420

Prime factors of 34420 are 2, 5, 1721. Prime factorization of 34420 in exponential form is:

34420 = 2² × 5¹ × 1721¹

Step-3: Factors of 34405

List of positive integer factors of 34405 that divides 34405 without a remainder.

1, 5, 7, 35, 983, 4915, 6881

Step-4: Factors of 34420

List of positive integer factors of 34420 that divides 34405 without a remainder.

1, 2, 4, 5, 10, 20, 1721, 3442, 6884, 8605, 17210

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 34405 and 34420. The biggest common factor number is the GCF number.
So the greatest common factor 34405 and 34420 is 5.

Also check out the Least Common Multiple of 34405 and 34420