Q: What are the prime factors of the number 404,013,008?

 A: 2, 7, 89, 40531

Why are those the prime factors of the number 404,013,008?

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 404,013,008

404,013,008
Factor Arrows
2202,006,504
Factor Arrows
2101,003,252
Factor Arrows
250,501,626
Factor Arrows
225,250,813
Factor Arrows
73,607,259
Factor Arrows
8940,531

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, 7, 89, 40531

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 89 x 40,531 = 404,013,008

This can also be written as 24 x 71 x 891 x 40,5311 = 404,013,008

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 404,013,008:


Ask a Question