Q: What are the prime factors of the number 23,705,110?

 A: 2, 5, 11, 13, 137

Why are those the prime factors of the number 23,705,110?

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 23,705,110

23,705,110
Factor Arrows
211,852,555
Factor Arrows
52,370,511
Factor Arrows
11215,501
Factor Arrows
1119,591
Factor Arrows
111,781
Factor Arrows
13137

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, 11, 13, 137

We can check our work by multiplying all of the prime factors together: 2 x 5 x 11 x 11 x 11 x 13 x 137 = 23,705,110

This can also be written as 21 x 51 x 113 x 131 x 1371 = 23,705,110

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


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