Q: What are the prime factors of the number 28,204,813?

 A: 7, 13, 281, 1103

Why are those the prime factors of the number 28,204,813?

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 28,204,813

28,204,813
Factor Arrows
74,029,259
Factor Arrows
13309,943
Factor Arrows
2811,103

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:

7, 13, 281, 1103

We can check our work by multiplying all of the prime factors together: 7 x 13 x 281 x 1,103 = 28,204,813

This can also be written as 71 x 131 x 2811 x 1,1031 = 28,204,813

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 28,204,813:


Ask a Question