Q: What are the prime factors of the number 42,037,820?

 A: 2, 5, 11, 29, 599

Why are those the prime factors of the number 42,037,820?

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 42,037,820

42,037,820
Factor Arrows
221,018,910
Factor Arrows
210,509,455
Factor Arrows
52,101,891
Factor Arrows
11191,081
Factor Arrows
1117,371
Factor Arrows
29599

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, 5, 11, 29, 599

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 11 x 11 x 29 x 599 = 42,037,820

This can also be written as 22 x 51 x 112 x 291 x 5991 = 42,037,820

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 42,037,820:


Ask a Question