Q: What are the prime factors of the number 768,064?

 A: 2, 11, 1091

Why are those the prime factors of the number 768,064?

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 768,064

768,064
Factor Arrows
2384,032
Factor Arrows
2192,016
Factor Arrows
296,008
Factor Arrows
248,004
Factor Arrows
224,002
Factor Arrows
212,001
Factor Arrows
111,091

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, 11, 1091

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 11 x 1,091 = 768,064

This can also be written as 26 x 111 x 1,0911 = 768,064

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


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