What is the Greatest Common Factor of 16420 and 16435?

Greatest common factor (GCF) of 16420 and 16435 is 5.

GCF(16420,16435) = 5

We will now calculate the prime factors of 16420 and 16435, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16420 and 16435.

How to find the GCF of 16420 and 16435?

We will first find the prime factorization of 16420 and 16435. After we will calculate the factors of 16420 and 16435 and find the biggest common factor number .

Step-1: Prime Factorization of 16420

Prime factors of 16420 are 2, 5, 821. Prime factorization of 16420 in exponential form is:

16420 = 2² × 5¹ × 821¹

Step-2: Prime Factorization of 16435

Prime factors of 16435 are 5, 19, 173. Prime factorization of 16435 in exponential form is:

16435 = 5¹ × 19¹ × 173¹

Step-3: Factors of 16420

List of positive integer factors of 16420 that divides 16420 without a remainder.

1, 2, 4, 5, 10, 20, 821, 1642, 3284, 4105, 8210

Step-4: Factors of 16435

List of positive integer factors of 16435 that divides 16420 without a remainder.

1, 5, 19, 95, 173, 865, 3287

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 16420 and 16435. The biggest common factor number is the GCF number.
So the greatest common factor 16420 and 16435 is 5.

Also check out the Least Common Multiple of 16420 and 16435