Q: What are the prime factors of the number 872,768?

 A: 2, 13, 1049

Why are those the prime factors of the number 872,768?

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 872,768

872,768
Factor Arrows
2436,384
Factor Arrows
2218,192
Factor Arrows
2109,096
Factor Arrows
254,548
Factor Arrows
227,274
Factor Arrows
213,637
Factor Arrows
131,049

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, 13, 1049

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 13 x 1,049 = 872,768

This can also be written as 26 x 131 x 1,0491 = 872,768

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


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