Q: What are the prime factors of the number 40,120,528?

 A: 2, 7, 358219

Why are those the prime factors of the number 40,120,528?

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 40,120,528

40,120,528
Factor Arrows
220,060,264
Factor Arrows
210,030,132
Factor Arrows
25,015,066
Factor Arrows
22,507,533
Factor Arrows
7358,219

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, 358219

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 358,219 = 40,120,528

This can also be written as 24 x 71 x 358,2191 = 40,120,528

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 40,120,528:


Ask a Question