Q: What are the prime factors of the number 10,386,390?

 A: 2, 3, 5, 7, 49459

Why are those the prime factors of the number 10,386,390?

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 10,386,390

10,386,390
Factor Arrows
25,193,195
Factor Arrows
31,731,065
Factor Arrows
5346,213
Factor Arrows
749,459

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, 7, 49459

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 7 x 49,459 = 10,386,390

This can also be written as 21 x 31 x 51 x 71 x 49,4591 = 10,386,390

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 10,386,390:


Ask a Question