Q: What are the prime factors of the number 868,287?

 A: 3, 7, 173, 239

Why are those the prime factors of the number 868,287?

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 868,287

868,287
Factor Arrows
3289,429
Factor Arrows
741,347
Factor Arrows
173239

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:

3, 7, 173, 239

We can check our work by multiplying all of the prime factors together: 3 x 7 x 173 x 239 = 868,287

This can also be written as 31 x 71 x 1731 x 2391 = 868,287

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 868,287:


Ask a Question