Q: What are the prime factors of the number 110,143,320?

 A: 2, 3, 5, 7, 23, 5701

Why are those the prime factors of the number 110,143,320?

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 110,143,320

110,143,320
Factor Arrows
255,071,660
Factor Arrows
227,535,830
Factor Arrows
213,767,915
Factor Arrows
34,589,305
Factor Arrows
5917,861
Factor Arrows
7131,123
Factor Arrows
235,701

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, 7, 23, 5701

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 7 x 23 x 5,701 = 110,143,320

This can also be written as 23 x 31 x 51 x 71 x 231 x 5,7011 = 110,143,320

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


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