Q: What are the prime factors of the number 82,224?

 A: 2, 3, 571

Why are those the prime factors of the number 82,224?

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 82,224

82,224
Factor Arrows
241,112
Factor Arrows
220,556
Factor Arrows
210,278
Factor Arrows
25,139
Factor Arrows
31,713
Factor Arrows
3571

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, 571

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 571 = 82,224

This can also be written as 24 x 32 x 5711 = 82,224

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


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