Q: What are the prime factors of the number 42,034,816?

 A: 2, 328397

Why are those the prime factors of the number 42,034,816?

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 42,034,816

42,034,816
Factor Arrows
221,017,408
Factor Arrows
210,508,704
Factor Arrows
25,254,352
Factor Arrows
22,627,176
Factor Arrows
21,313,588
Factor Arrows
2656,794
Factor Arrows
2328,397

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, 328397

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 328,397 = 42,034,816

This can also be written as 27 x 328,3971 = 42,034,816

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 42,034,816:


Ask a Question