Q: What are the prime factors of the number 120,151,416?

 A: 2, 3, 7, 11, 79, 823

Why are those the prime factors of the number 120,151,416?

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 120,151,416

120,151,416
Factor Arrows
260,075,708
Factor Arrows
230,037,854
Factor Arrows
215,018,927
Factor Arrows
35,006,309
Factor Arrows
7715,187
Factor Arrows
1165,017
Factor Arrows
79823

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, 3, 7, 11, 79, 823

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 11 x 79 x 823 = 120,151,416

This can also be written as 23 x 31 x 71 x 111 x 791 x 8231 = 120,151,416

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 120,151,416:


Ask a Question