Q: What are the prime factors of the number 301,155,540?

 A: 2, 3, 5, 7, 53, 83, 163

Why are those the prime factors of the number 301,155,540?

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 301,155,540

301,155,540
Factor Arrows
2150,577,770
Factor Arrows
275,288,885
Factor Arrows
325,096,295
Factor Arrows
55,019,259
Factor Arrows
7717,037
Factor Arrows
5313,529
Factor Arrows
83163

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, 53, 83, 163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 7 x 53 x 83 x 163 = 301,155,540

This can also be written as 22 x 31 x 51 x 71 x 531 x 831 x 1631 = 301,155,540

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 301,155,540:


Ask a Question