Q: What are the prime factors of the number 1,009,184?

 A: 2, 11, 47, 61

Why are those the prime factors of the number 1,009,184?

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 1,009,184

1,009,184
Factor Arrows
2504,592
Factor Arrows
2252,296
Factor Arrows
2126,148
Factor Arrows
263,074
Factor Arrows
231,537
Factor Arrows
112,867
Factor Arrows
4761

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, 47, 61

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 11 x 47 x 61 = 1,009,184

This can also be written as 25 x 111 x 471 x 611 = 1,009,184

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


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