Q: What are the prime factors of the number 2,184,624?

 A: 2, 3, 13, 389

Why are those the prime factors of the number 2,184,624?

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 2,184,624

2,184,624
Factor Arrows
21,092,312
Factor Arrows
2546,156
Factor Arrows
2273,078
Factor Arrows
2136,539
Factor Arrows
345,513
Factor Arrows
315,171
Factor Arrows
35,057
Factor Arrows
13389

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, 13, 389

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 13 x 389 = 2,184,624

This can also be written as 24 x 33 x 131 x 3891 = 2,184,624

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


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