Q: What are the prime factors of the number 15,342,656?

 A: 2, 7, 23, 1489

Why are those the prime factors of the number 15,342,656?

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 15,342,656

15,342,656
Factor Arrows
27,671,328
Factor Arrows
23,835,664
Factor Arrows
21,917,832
Factor Arrows
2958,916
Factor Arrows
2479,458
Factor Arrows
2239,729
Factor Arrows
734,247
Factor Arrows
231,489

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, 7, 23, 1489

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 7 x 23 x 1,489 = 15,342,656

This can also be written as 26 x 71 x 231 x 1,4891 = 15,342,656

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 15,342,656:


Ask a Question