Q: What are the prime factors of the number 8,132,608?

 A: 2, 11, 19

Why are those the prime factors of the number 8,132,608?

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 8,132,608

8,132,608
Factor Arrows
24,066,304
Factor Arrows
22,033,152
Factor Arrows
21,016,576
Factor Arrows
2508,288
Factor Arrows
2254,144
Factor Arrows
2127,072
Factor Arrows
263,536
Factor Arrows
231,768
Factor Arrows
215,884
Factor Arrows
27,942
Factor Arrows
23,971
Factor Arrows
11361
Factor Arrows
1919

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, 11, 19

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 2 x 11 x 19 x 19 = 8,132,608

This can also be written as 211 x 111 x 192 = 8,132,608

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


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