Q: What are the prime factors of the number 2,023,424?

 A: 2, 13, 19

Why are those the prime factors of the number 2,023,424?

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 2,023,424

2,023,424
Factor Arrows
21,011,712
Factor Arrows
2505,856
Factor Arrows
2252,928
Factor Arrows
2126,464
Factor Arrows
263,232
Factor Arrows
231,616
Factor Arrows
215,808
Factor Arrows
27,904
Factor Arrows
23,952
Factor Arrows
21,976
Factor Arrows
2988
Factor Arrows
2494
Factor Arrows
2247
Factor Arrows
1319

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, 13, 19

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 2 x 2 x 2 x 2 x 2 x 2 x 13 x 19 = 2,023,424

This can also be written as 213 x 131 x 191 = 2,023,424

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


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