Q: What are the prime factors of the number 3,321,344?

 A: 2, 13, 499

Why are those the prime factors of the number 3,321,344?

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 3,321,344

3,321,344
Factor Arrows
21,660,672
Factor Arrows
2830,336
Factor Arrows
2415,168
Factor Arrows
2207,584
Factor Arrows
2103,792
Factor Arrows
251,896
Factor Arrows
225,948
Factor Arrows
212,974
Factor Arrows
26,487
Factor Arrows
13499

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, 13, 499

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 13 x 499 = 3,321,344

This can also be written as 29 x 131 x 4991 = 3,321,344

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


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