Q: What are the prime factors of the number 1,722,560?

 A: 2, 5, 7, 769

Why are those the prime factors of the number 1,722,560?

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 1,722,560

1,722,560
Factor Arrows
2861,280
Factor Arrows
2430,640
Factor Arrows
2215,320
Factor Arrows
2107,660
Factor Arrows
253,830
Factor Arrows
226,915
Factor Arrows
55,383
Factor Arrows
7769

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, 7, 769

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 7 x 769 = 1,722,560

This can also be written as 26 x 51 x 71 x 7691 = 1,722,560

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 1,722,560:


Ask a Question