Q: What are the prime factors of the number 678,510?

 A: 2, 3, 5, 7, 359

Why are those the prime factors of the number 678,510?

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 678,510

678,510
Factor Arrows
2339,255
Factor Arrows
3113,085
Factor Arrows
337,695
Factor Arrows
312,565
Factor Arrows
52,513
Factor Arrows
7359

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, 359

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 7 x 359 = 678,510

This can also be written as 21 x 33 x 51 x 71 x 3591 = 678,510

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 678,510:


Ask a Question