Q: What are the prime factors of the number 800,768?

 A: 2, 17, 23

Why are those the prime factors of the number 800,768?

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 800,768

800,768
Factor Arrows
2400,384
Factor Arrows
2200,192
Factor Arrows
2100,096
Factor Arrows
250,048
Factor Arrows
225,024
Factor Arrows
212,512
Factor Arrows
26,256
Factor Arrows
23,128
Factor Arrows
21,564
Factor Arrows
2782
Factor Arrows
2391
Factor Arrows
1723

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, 17, 23

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 2 x 2 x 17 x 23 = 800,768

This can also be written as 211 x 171 x 231 = 800,768

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


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