Q: What are the prime factors of the number 713,231,328?

 A: 2, 3, 17, 103, 4243

Why are those the prime factors of the number 713,231,328?

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 713,231,328

713,231,328
Factor Arrows
2356,615,664
Factor Arrows
2178,307,832
Factor Arrows
289,153,916
Factor Arrows
244,576,958
Factor Arrows
222,288,479
Factor Arrows
37,429,493
Factor Arrows
17437,029
Factor Arrows
1034,243

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, 17, 103, 4243

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 17 x 103 x 4,243 = 713,231,328

This can also be written as 25 x 31 x 171 x 1031 x 4,2431 = 713,231,328

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


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