Q: What are the prime factors of the number 386,730?

 A: 2, 3, 5, 4297

Why are those the prime factors of the number 386,730?

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 386,730

386,730
Factor Arrows
2193,365
Factor Arrows
364,455
Factor Arrows
321,485
Factor Arrows
54,297

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, 5, 4297

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 4,297 = 386,730

This can also be written as 21 x 32 x 51 x 4,2971 = 386,730

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 386,730:


Ask a Question