Q: What are the prime factors of the number 4,009,088?

 A: 2, 31321

Why are those the prime factors of the number 4,009,088?

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 4,009,088

4,009,088
Factor Arrows
22,004,544
Factor Arrows
21,002,272
Factor Arrows
2501,136
Factor Arrows
2250,568
Factor Arrows
2125,284
Factor Arrows
262,642
Factor Arrows
231,321

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, 31321

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 31,321 = 4,009,088

This can also be written as 27 x 31,3211 = 4,009,088

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


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