Q: What are the prime factors of the number 404,208?

 A: 2, 3, 7, 401

Why are those the prime factors of the number 404,208?

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 404,208

404,208
Factor Arrows
2202,104
Factor Arrows
2101,052
Factor Arrows
250,526
Factor Arrows
225,263
Factor Arrows
38,421
Factor Arrows
32,807
Factor Arrows
7401

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, 7, 401

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 7 x 401 = 404,208

This can also be written as 24 x 32 x 71 x 4011 = 404,208

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 404,208:


Ask a Question