Q: What are the prime factors of the number 768,864?

 A: 2, 3, 8009

Why are those the prime factors of the number 768,864?

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 768,864

768,864
Factor Arrows
2384,432
Factor Arrows
2192,216
Factor Arrows
296,108
Factor Arrows
248,054
Factor Arrows
224,027
Factor Arrows
38,009

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, 8009

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 8,009 = 768,864

This can also be written as 25 x 31 x 8,0091 = 768,864

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


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