Q: What are the prime factors of the number 3,368,960?

 A: 2, 5, 7, 47

Why are those the prime factors of the number 3,368,960?

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 3,368,960

3,368,960
Factor Arrows
21,684,480
Factor Arrows
2842,240
Factor Arrows
2421,120
Factor Arrows
2210,560
Factor Arrows
2105,280
Factor Arrows
252,640
Factor Arrows
226,320
Factor Arrows
213,160
Factor Arrows
26,580
Factor Arrows
23,290
Factor Arrows
21,645
Factor Arrows
5329
Factor Arrows
747

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, 5, 7, 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 2 x 2 x 2 x 5 x 7 x 47 = 3,368,960

This can also be written as 211 x 51 x 71 x 471 = 3,368,960

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


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