Q: What are the prime factors of the number 3,345,280?

 A: 2, 5, 5227

Why are those the prime factors of the number 3,345,280?

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 3,345,280

3,345,280
Factor Arrows
21,672,640
Factor Arrows
2836,320
Factor Arrows
2418,160
Factor Arrows
2209,080
Factor Arrows
2104,540
Factor Arrows
252,270
Factor Arrows
226,135
Factor Arrows
55,227

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, 5227

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 5 x 5,227 = 3,345,280

This can also be written as 27 x 51 x 5,2271 = 3,345,280

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


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