Q: What are the prime factors of the number 718,332,849?

 A: 3, 13, 23, 173, 1543

Why are those the prime factors of the number 718,332,849?

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 718,332,849

718,332,849
Factor Arrows
3239,444,283
Factor Arrows
379,814,761
Factor Arrows
136,139,597
Factor Arrows
23266,939
Factor Arrows
1731,543

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, 13, 23, 173, 1543

We can check our work by multiplying all of the prime factors together: 3 x 3 x 13 x 23 x 173 x 1,543 = 718,332,849

This can also be written as 32 x 131 x 231 x 1731 x 1,5431 = 718,332,849

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


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