Q: What are the prime factors of the number 240,816?

 A: 2, 3, 29, 173

Why are those the prime factors of the number 240,816?

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 240,816

240,816
Factor Arrows
2120,408
Factor Arrows
260,204
Factor Arrows
230,102
Factor Arrows
215,051
Factor Arrows
35,017
Factor Arrows
29173

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, 29, 173

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 29 x 173 = 240,816

This can also be written as 24 x 31 x 291 x 1731 = 240,816

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


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