Q: What are the prime factors of the number 5,646,336?

 A: 2, 3, 919

Why are those the prime factors of the number 5,646,336?

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 5,646,336

5,646,336
Factor Arrows
22,823,168
Factor Arrows
21,411,584
Factor Arrows
2705,792
Factor Arrows
2352,896
Factor Arrows
2176,448
Factor Arrows
288,224
Factor Arrows
244,112
Factor Arrows
222,056
Factor Arrows
211,028
Factor Arrows
25,514
Factor Arrows
22,757
Factor Arrows
3919

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, 919

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 3 x 919 = 5,646,336

This can also be written as 211 x 31 x 9191 = 5,646,336

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


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