Q: What are the prime factors of the number 26,318,320?

 A: 2, 5, 7, 46997

Why are those the prime factors of the number 26,318,320?

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 26,318,320

26,318,320
Factor Arrows
213,159,160
Factor Arrows
26,579,580
Factor Arrows
23,289,790
Factor Arrows
21,644,895
Factor Arrows
5328,979
Factor Arrows
746,997

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, 5, 7, 46997

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 46,997 = 26,318,320

This can also be written as 24 x 51 x 71 x 46,9971 = 26,318,320

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


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