Q: What are the prime factors of the number 2,577,280?

 A: 2, 5, 4027

Why are those the prime factors of the number 2,577,280?

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 2,577,280

2,577,280
Factor Arrows
21,288,640
Factor Arrows
2644,320
Factor Arrows
2322,160
Factor Arrows
2161,080
Factor Arrows
280,540
Factor Arrows
240,270
Factor Arrows
220,135
Factor Arrows
54,027

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, 4027

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 4,027 = 2,577,280

This can also be written as 27 x 51 x 4,0271 = 2,577,280

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


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