Q: What are the prime factors of the number 280,288?

 A: 2, 19, 461

Why are those the prime factors of the number 280,288?

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 280,288

280,288
Factor Arrows
2140,144
Factor Arrows
270,072
Factor Arrows
235,036
Factor Arrows
217,518
Factor Arrows
28,759
Factor Arrows
19461

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, 19, 461

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 19 x 461 = 280,288

This can also be written as 25 x 191 x 4611 = 280,288

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


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