Q: What are the prime factors of the number 885,120?

 A: 2, 3, 5, 461

Why are those the prime factors of the number 885,120?

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 885,120

885,120
Factor Arrows
2442,560
Factor Arrows
2221,280
Factor Arrows
2110,640
Factor Arrows
255,320
Factor Arrows
227,660
Factor Arrows
213,830
Factor Arrows
26,915
Factor Arrows
32,305
Factor Arrows
5461

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, 5, 461

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 3 x 5 x 461 = 885,120

This can also be written as 27 x 31 x 51 x 4611 = 885,120

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


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