Q: What are the prime factors of the number 40,043,432?

 A: 2, 11, 13, 17, 29, 71

Why are those the prime factors of the number 40,043,432?

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 40,043,432

40,043,432
Factor Arrows
220,021,716
Factor Arrows
210,010,858
Factor Arrows
25,005,429
Factor Arrows
11455,039
Factor Arrows
1335,003
Factor Arrows
172,059
Factor Arrows
2971

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, 11, 13, 17, 29, 71

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 11 x 13 x 17 x 29 x 71 = 40,043,432

This can also be written as 23 x 111 x 131 x 171 x 291 x 711 = 40,043,432

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 40,043,432:


Ask a Question