Q: What are the prime factors of the number 70,398?

 A: 2, 3, 3911

Why are those the prime factors of the number 70,398?

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 70,398

70,398
Factor Arrows
235,199
Factor Arrows
311,733
Factor Arrows
33,911

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, 3911

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3,911 = 70,398

This can also be written as 21 x 32 x 3,9111 = 70,398

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 70,398:


Ask a Question