Q: What are the prime factors of the number 23,003,040?

 A: 2, 3, 5, 17, 2819

Why are those the prime factors of the number 23,003,040?

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 23,003,040

23,003,040
Factor Arrows
211,501,520
Factor Arrows
25,750,760
Factor Arrows
22,875,380
Factor Arrows
21,437,690
Factor Arrows
2718,845
Factor Arrows
3239,615
Factor Arrows
547,923
Factor Arrows
172,819

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, 5, 17, 2819

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 17 x 2,819 = 23,003,040

This can also be written as 25 x 31 x 51 x 171 x 2,8191 = 23,003,040

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


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