Q: What are the prime factors of the number 2,409,984?

 A: 2, 3, 523

Why are those the prime factors of the number 2,409,984?

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 2,409,984

2,409,984
Factor Arrows
21,204,992
Factor Arrows
2602,496
Factor Arrows
2301,248
Factor Arrows
2150,624
Factor Arrows
275,312
Factor Arrows
237,656
Factor Arrows
218,828
Factor Arrows
29,414
Factor Arrows
24,707
Factor Arrows
31,569
Factor Arrows
3523

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, 523

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 3 x 3 x 523 = 2,409,984

This can also be written as 29 x 32 x 5231 = 2,409,984

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


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