Q: What are the prime factors of the number 280,560?

 A: 2, 3, 5, 7, 167

Why are those the prime factors of the number 280,560?

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 280,560

280,560
Factor Arrows
2140,280
Factor Arrows
270,140
Factor Arrows
235,070
Factor Arrows
217,535
Factor Arrows
35,845
Factor Arrows
51,169
Factor Arrows
7167

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, 5, 7, 167

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 7 x 167 = 280,560

This can also be written as 24 x 31 x 51 x 71 x 1671 = 280,560

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


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