Q: What are the prime factors of the number 25,404,288?

 A: 2, 3, 7, 13, 727

Why are those the prime factors of the number 25,404,288?

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 25,404,288

25,404,288
Factor Arrows
212,702,144
Factor Arrows
26,351,072
Factor Arrows
23,175,536
Factor Arrows
21,587,768
Factor Arrows
2793,884
Factor Arrows
2396,942
Factor Arrows
2198,471
Factor Arrows
366,157
Factor Arrows
79,451
Factor Arrows
13727

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, 7, 13, 727

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 3 x 7 x 13 x 727 = 25,404,288

This can also be written as 27 x 31 x 71 x 131 x 7271 = 25,404,288

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


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