Q: What are the prime factors of the number 10,108,608?

 A: 2, 3, 17, 19, 163

Why are those the prime factors of the number 10,108,608?

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 10,108,608

10,108,608
Factor Arrows
25,054,304
Factor Arrows
22,527,152
Factor Arrows
21,263,576
Factor Arrows
2631,788
Factor Arrows
2315,894
Factor Arrows
2157,947
Factor Arrows
352,649
Factor Arrows
173,097
Factor Arrows
19163

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, 19, 163

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 3 x 17 x 19 x 163 = 10,108,608

This can also be written as 26 x 31 x 171 x 191 x 1631 = 10,108,608

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


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