Q: What are the prime factors of the number 3,453,184?

 A: 2, 7, 41, 47

Why are those the prime factors of the number 3,453,184?

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 3,453,184

3,453,184
Factor Arrows
21,726,592
Factor Arrows
2863,296
Factor Arrows
2431,648
Factor Arrows
2215,824
Factor Arrows
2107,912
Factor Arrows
253,956
Factor Arrows
226,978
Factor Arrows
213,489
Factor Arrows
71,927
Factor Arrows
4147

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, 7, 41, 47

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 7 x 41 x 47 = 3,453,184

This can also be written as 28 x 71 x 411 x 471 = 3,453,184

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


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