Q: What are the prime factors of the number 280,656?

 A: 2, 3, 1949

Why are those the prime factors of the number 280,656?

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 280,656

280,656
Factor Arrows
2140,328
Factor Arrows
270,164
Factor Arrows
235,082
Factor Arrows
217,541
Factor Arrows
35,847
Factor Arrows
31,949

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, 1949

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 1,949 = 280,656

This can also be written as 24 x 32 x 1,9491 = 280,656

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


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