Q: What are the prime factors of the number 407,880?

 A: 2, 3, 5, 11, 103

Why are those the prime factors of the number 407,880?

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 407,880

407,880
Factor Arrows
2203,940
Factor Arrows
2101,970
Factor Arrows
250,985
Factor Arrows
316,995
Factor Arrows
35,665
Factor Arrows
51,133
Factor Arrows
11103

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, 11, 103

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 11 x 103 = 407,880

This can also be written as 23 x 32 x 51 x 111 x 1031 = 407,880

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 407,880:


Ask a Question