Q: What are the prime factors of the number 2,916,288?

 A: 2, 3, 61, 83

Why are those the prime factors of the number 2,916,288?

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 2,916,288

2,916,288
Factor Arrows
21,458,144
Factor Arrows
2729,072
Factor Arrows
2364,536
Factor Arrows
2182,268
Factor Arrows
291,134
Factor Arrows
245,567
Factor Arrows
315,189
Factor Arrows
35,063
Factor Arrows
6183

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, 61, 83

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 3 x 3 x 61 x 83 = 2,916,288

This can also be written as 26 x 32 x 611 x 831 = 2,916,288

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


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