Q: What are the prime factors of the number 1,521,024?

 A: 2, 3, 17, 233

Why are those the prime factors of the number 1,521,024?

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 1,521,024

1,521,024
Factor Arrows
2760,512
Factor Arrows
2380,256
Factor Arrows
2190,128
Factor Arrows
295,064
Factor Arrows
247,532
Factor Arrows
223,766
Factor Arrows
211,883
Factor Arrows
33,961
Factor Arrows
17233

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, 233

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 233 = 1,521,024

This can also be written as 27 x 31 x 171 x 2331 = 1,521,024

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


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