Q: What are the prime factors of the number 5,728,866?

 A: 2, 3, 11, 13, 607

Why are those the prime factors of the number 5,728,866?

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 5,728,866

5,728,866
Factor Arrows
22,864,433
Factor Arrows
3954,811
Factor Arrows
1186,801
Factor Arrows
117,891
Factor Arrows
13607

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, 11, 13, 607

We can check our work by multiplying all of the prime factors together: 2 x 3 x 11 x 11 x 13 x 607 = 5,728,866

This can also be written as 21 x 31 x 112 x 131 x 6071 = 5,728,866

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


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