Q: What are the prime factors of the number 394,210?

 A: 2, 5, 79, 499

Why are those the prime factors of the number 394,210?

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 394,210

394,210
Factor Arrows
2197,105
Factor Arrows
539,421
Factor Arrows
79499

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, 5, 79, 499

We can check our work by multiplying all of the prime factors together: 2 x 5 x 79 x 499 = 394,210

This can also be written as 21 x 51 x 791 x 4991 = 394,210

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 394,210:


Ask a Question