Q: What are the prime factors of the number 729,495?

 A: 3, 5, 13, 29, 43

Why are those the prime factors of the number 729,495?

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 729,495

729,495
Factor Arrows
3243,165
Factor Arrows
381,055
Factor Arrows
516,211
Factor Arrows
131,247
Factor Arrows
2943

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:

3, 5, 13, 29, 43

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 13 x 29 x 43 = 729,495

This can also be written as 32 x 51 x 131 x 291 x 431 = 729,495

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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