Q: What are the prime factors of the number 13,653,744?

 A: 2, 3, 13, 21881

Why are those the prime factors of the number 13,653,744?

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 13,653,744

13,653,744
Factor Arrows
26,826,872
Factor Arrows
23,413,436
Factor Arrows
21,706,718
Factor Arrows
2853,359
Factor Arrows
3284,453
Factor Arrows
1321,881

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, 21881

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 13 x 21,881 = 13,653,744

This can also be written as 24 x 31 x 131 x 21,8811 = 13,653,744

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


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