Q: What are the prime factors of the number 716,408?

 A: 2, 7, 11, 1163

Why are those the prime factors of the number 716,408?

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 716,408

716,408
Factor Arrows
2358,204
Factor Arrows
2179,102
Factor Arrows
289,551
Factor Arrows
712,793
Factor Arrows
111,163

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, 7, 11, 1163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 11 x 1,163 = 716,408

This can also be written as 23 x 71 x 111 x 1,1631 = 716,408

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


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