Q: What are the prime factors of the number 838,404?

 A: 2, 3, 7, 1109

Why are those the prime factors of the number 838,404?

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 838,404

838,404
Factor Arrows
2419,202
Factor Arrows
2209,601
Factor Arrows
369,867
Factor Arrows
323,289
Factor Arrows
37,763
Factor Arrows
71,109

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, 1109

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 7 x 1,109 = 838,404

This can also be written as 22 x 33 x 71 x 1,1091 = 838,404

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 838,404:


Ask a Question