Q: What are the prime factors of the number 11,423,120?

 A: 2, 5, 142789

Why are those the prime factors of the number 11,423,120?

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 11,423,120

11,423,120
Factor Arrows
25,711,560
Factor Arrows
22,855,780
Factor Arrows
21,427,890
Factor Arrows
2713,945
Factor Arrows
5142,789

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, 142789

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 142,789 = 11,423,120

This can also be written as 24 x 51 x 142,7891 = 11,423,120

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 11,423,120:


Ask a Question