Q: What are the prime factors of the number 16,823,538?

 A: 2, 3, 29, 3581

Why are those the prime factors of the number 16,823,538?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 16,823,538

16,823,538
Factor Arrows
28,411,769
Factor Arrows
32,803,923
Factor Arrows
3934,641
Factor Arrows
3311,547
Factor Arrows
3103,849
Factor Arrows
293,581

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 29, 3581

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 29 x 3,581 = 16,823,538

This can also be written as 21 x 34 x 291 x 3,5811 = 16,823,538

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


More Examples

Here are some more numbers to try:

Try the factor calculator

Explore more about the number 16,823,538:


Ask a Question