Greatest Common Factor of 492 and 1640
GCF(492, 1640) = 164, Greatest common factor of 492 and 1640 is 164. Greatest Common Factor or Greatest Common Divisor of two numbers is the largest integer by which both the numbers can be divided. There are two different methods to calculate Greatest Common Factor of 492 and 1640. Greatest Common Factor by prime factorization method and Greatest Common Factor by matching factors method.
Greatest Common Factor of 492 and 1640 by prime factorization method
We will first find the prime factorization of 492 and 1640.
Prime Factorization of 492 is 1, 2, 2, 3, 41 and Prime Factorization of 1640 is 1, 2, 2, 2, 5, 41.
- Factorize\( (492) = \) \(1\times 2\times 2\times 3\times 41\)
- Factorize\( (1640) = \) \(1\times 2\times 2\times 2\times 5\times 41\)
Now we need to find any which are common for each number (1, 2, 2, 41) and multiply these numbers together.
\(GCF(492, 1640) = 1\times 2\times 2\times 41 = 164\).
Greatest Common Factor of 492 and 1640 by matching factors method
List of positive integers factors of 492 leaving a remainder zero is 1, 2, 3, 4, 6, 12, 41, 82, 123, 164, 246, 492
List of positive integers factors of 1640 leaving a remainder zero is 1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640
As you can see, 164 is the greatest and common number that 492 and 1640 divides into.
So the greatest common factor 492 and 1640 is 164.
\(GCF(492, 1640) = 164\).
If you want to learn more about greatest common divisor, take a look at the Wikipedia page.
