Q: What are the prime factors of the number 2,808,832?

 A: 2, 13, 211

Why are those the prime factors of the number 2,808,832?

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 2,808,832

2,808,832
Factor Arrows
21,404,416
Factor Arrows
2702,208
Factor Arrows
2351,104
Factor Arrows
2175,552
Factor Arrows
287,776
Factor Arrows
243,888
Factor Arrows
221,944
Factor Arrows
210,972
Factor Arrows
25,486
Factor Arrows
22,743
Factor Arrows
13211

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, 13, 211

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 13 x 211 = 2,808,832

This can also be written as 210 x 131 x 2111 = 2,808,832

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


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