What is the Greatest Common Factor of 16420 and 16430?

Greatest common factor (GCF) of 16420 and 16430 is 10.

GCF(16420,16430) = 10

We will now calculate the prime factors of 16420 and 16430, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16420 and 16430.

How to find the GCF of 16420 and 16430?

We will first find the prime factorization of 16420 and 16430. After we will calculate the factors of 16420 and 16430 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 16430

Prime factors of 16430 are 2, 5, 31, 53. Prime factorization of 16430 in exponential form is:

16430 = 2¹ × 5¹ × 31¹ × 53¹

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 16430

List of positive integer factors of 16430 that divides 16420 without a remainder.

1, 2, 5, 10, 31, 53, 62, 106, 155, 265, 310, 530, 1643, 3286, 8215

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 16420 and 16430. The biggest common factor number is the GCF number.
So the greatest common factor 16420 and 16430 is 10.

Also check out the Least Common Multiple of 16420 and 16430