Q: What are the prime factors of the number 729,670?

 A: 2, 5, 131, 557

Why are those the prime factors of the number 729,670?

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 729,670

729,670
Factor Arrows
2364,835
Factor Arrows
572,967
Factor Arrows
131557

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, 131, 557

We can check our work by multiplying all of the prime factors together: 2 x 5 x 131 x 557 = 729,670

This can also be written as 21 x 51 x 1311 x 5571 = 729,670

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 729,670:


Ask a Question