Q: What are the prime factors of the number 2,663,424?

 A: 2, 3, 17

Why are those the prime factors of the number 2,663,424?

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 2,663,424

2,663,424
Factor Arrows
21,331,712
Factor Arrows
2665,856
Factor Arrows
2332,928
Factor Arrows
2166,464
Factor Arrows
283,232
Factor Arrows
241,616
Factor Arrows
220,808
Factor Arrows
210,404
Factor Arrows
25,202
Factor Arrows
22,601
Factor Arrows
3867
Factor Arrows
3289
Factor Arrows
1717

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, 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 2 x 2 x 3 x 3 x 17 x 17 = 2,663,424

This can also be written as 210 x 32 x 172 = 2,663,424

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 2,663,424:


Ask a Question