Q: What are the prime factors of the number 278,532?

 A: 2, 3, 2579

Why are those the prime factors of the number 278,532?

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 278,532

278,532
Factor Arrows
2139,266
Factor Arrows
269,633
Factor Arrows
323,211
Factor Arrows
37,737
Factor Arrows
32,579

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, 2579

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 2,579 = 278,532

This can also be written as 22 x 33 x 2,5791 = 278,532

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 278,532:


Ask a Question