Q: What are the prime factors of the number 401,352,330?

 A: 2, 3, 5, 617, 21683

Why are those the prime factors of the number 401,352,330?

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 401,352,330

401,352,330
Factor Arrows
2200,676,165
Factor Arrows
366,892,055
Factor Arrows
513,378,411
Factor Arrows
61721,683

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, 617, 21683

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 617 x 21,683 = 401,352,330

This can also be written as 21 x 31 x 51 x 6171 x 21,6831 = 401,352,330

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 401,352,330:


Ask a Question