Q: What are the prime factors of the number 280,064?

 A: 2, 547

Why are those the prime factors of the number 280,064?

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 280,064

280,064
Factor Arrows
2140,032
Factor Arrows
270,016
Factor Arrows
235,008
Factor Arrows
217,504
Factor Arrows
28,752
Factor Arrows
24,376
Factor Arrows
22,188
Factor Arrows
21,094
Factor Arrows
2547

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, 547

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 547 = 280,064

This can also be written as 29 x 5471 = 280,064

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


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