Q: What are the prime factors of the number 286,824?

 A: 2, 3, 17, 19, 37

Why are those the prime factors of the number 286,824?

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 286,824

286,824
Factor Arrows
2143,412
Factor Arrows
271,706
Factor Arrows
235,853
Factor Arrows
311,951
Factor Arrows
17703
Factor Arrows
1937

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, 17, 19, 37

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 17 x 19 x 37 = 286,824

This can also be written as 23 x 31 x 171 x 191 x 371 = 286,824

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


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