Q: What are the prime factors of the number 286,160?

 A: 2, 5, 7, 73

Why are those the prime factors of the number 286,160?

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 286,160

286,160
Factor Arrows
2143,080
Factor Arrows
271,540
Factor Arrows
235,770
Factor Arrows
217,885
Factor Arrows
53,577
Factor Arrows
7511
Factor Arrows
773

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, 5, 7, 73

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 7 x 73 = 286,160

This can also be written as 24 x 51 x 72 x 731 = 286,160

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


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