Q: What are the prime factors of the number 2,748,288?

 A: 2, 3, 17, 421

Why are those the prime factors of the number 2,748,288?

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 2,748,288

2,748,288
Factor Arrows
21,374,144
Factor Arrows
2687,072
Factor Arrows
2343,536
Factor Arrows
2171,768
Factor Arrows
285,884
Factor Arrows
242,942
Factor Arrows
221,471
Factor Arrows
37,157
Factor Arrows
17421

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, 17, 421

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 17 x 421 = 2,748,288

This can also be written as 27 x 31 x 171 x 4211 = 2,748,288

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


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