Q: What are the prime factors of the number 40,020,448?

 A: 2, 13, 17, 5659

Why are those the prime factors of the number 40,020,448?

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 40,020,448

40,020,448
Factor Arrows
220,010,224
Factor Arrows
210,005,112
Factor Arrows
25,002,556
Factor Arrows
22,501,278
Factor Arrows
21,250,639
Factor Arrows
1396,203
Factor Arrows
175,659

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, 13, 17, 5659

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 13 x 17 x 5,659 = 40,020,448

This can also be written as 25 x 131 x 171 x 5,6591 = 40,020,448

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 40,020,448:


Ask a Question