Q: What are the prime factors of the number 11,424,000?

 A: 2, 3, 5, 7, 17

Why are those the prime factors of the number 11,424,000?

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 11,424,000

11,424,000
Factor Arrows
25,712,000
Factor Arrows
22,856,000
Factor Arrows
21,428,000
Factor Arrows
2714,000
Factor Arrows
2357,000
Factor Arrows
2178,500
Factor Arrows
289,250
Factor Arrows
244,625
Factor Arrows
314,875
Factor Arrows
52,975
Factor Arrows
5595
Factor Arrows
5119
Factor Arrows
717

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, 17

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5 x 5 x 5 x 7 x 17 = 11,424,000

This can also be written as 28 x 31 x 53 x 71 x 171 = 11,424,000

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 11,424,000:


Ask a Question