Q: What are the prime factors of the number 405,713,328?

 A: 2, 3, 283, 29867

Why are those the prime factors of the number 405,713,328?

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 405,713,328

405,713,328
Factor Arrows
2202,856,664
Factor Arrows
2101,428,332
Factor Arrows
250,714,166
Factor Arrows
225,357,083
Factor Arrows
38,452,361
Factor Arrows
28329,867

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, 283, 29867

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 283 x 29,867 = 405,713,328

This can also be written as 24 x 31 x 2831 x 29,8671 = 405,713,328

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 405,713,328:


Ask a Question