Q: What are the prime factors of the number 3,471,616?

 A: 2, 71, 191

Why are those the prime factors of the number 3,471,616?

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 3,471,616

3,471,616
Factor Arrows
21,735,808
Factor Arrows
2867,904
Factor Arrows
2433,952
Factor Arrows
2216,976
Factor Arrows
2108,488
Factor Arrows
254,244
Factor Arrows
227,122
Factor Arrows
213,561
Factor Arrows
71191

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, 71, 191

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 71 x 191 = 3,471,616

This can also be written as 28 x 711 x 1911 = 3,471,616

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


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