Q: What are the prime factors of the number 117,311,040?

 A: 2, 3, 5, 7, 11, 23

Why are those the prime factors of the number 117,311,040?

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 117,311,040

117,311,040
Factor Arrows
258,655,520
Factor Arrows
229,327,760
Factor Arrows
214,663,880
Factor Arrows
27,331,940
Factor Arrows
23,665,970
Factor Arrows
21,832,985
Factor Arrows
3610,995
Factor Arrows
3203,665
Factor Arrows
540,733
Factor Arrows
75,819
Factor Arrows
11529
Factor Arrows
2323

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, 5, 7, 11, 23

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 3 x 3 x 5 x 7 x 11 x 23 x 23 = 117,311,040

This can also be written as 26 x 32 x 51 x 71 x 111 x 232 = 117,311,040

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 117,311,040:


Ask a Question