Q: What are the prime factors of the number 2,573,120?

 A: 2, 5, 11, 17, 43

Why are those the prime factors of the number 2,573,120?

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 2,573,120

2,573,120
Factor Arrows
21,286,560
Factor Arrows
2643,280
Factor Arrows
2321,640
Factor Arrows
2160,820
Factor Arrows
280,410
Factor Arrows
240,205
Factor Arrows
58,041
Factor Arrows
11731
Factor Arrows
1743

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, 17, 43

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 11 x 17 x 43 = 2,573,120

This can also be written as 26 x 51 x 111 x 171 x 431 = 2,573,120

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 2,573,120:


Ask a Question