Q: What are the prime factors of the number 531,300?

 A: 2, 3, 5, 7, 11, 23

Why are those the prime factors of the number 531,300?

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 531,300

531,300
Factor Arrows
2265,650
Factor Arrows
2132,825
Factor Arrows
344,275
Factor Arrows
58,855
Factor Arrows
51,771
Factor Arrows
7253
Factor Arrows
1123

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 3 x 5 x 5 x 7 x 11 x 23 = 531,300

This can also be written as 22 x 31 x 52 x 71 x 111 x 231 = 531,300

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 531,300:


Ask a Question