Q: What are the prime factors of the number 451,520?

 A: 2, 5, 17, 83

Why are those the prime factors of the number 451,520?

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 451,520

451,520
Factor Arrows
2225,760
Factor Arrows
2112,880
Factor Arrows
256,440
Factor Arrows
228,220
Factor Arrows
214,110
Factor Arrows
27,055
Factor Arrows
51,411
Factor Arrows
1783

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, 17, 83

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 5 x 17 x 83 = 451,520

This can also be written as 26 x 51 x 171 x 831 = 451,520

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 451,520:


Ask a Question