Q: What are the prime factors of the number 110,111,008?

 A: 2, 7, 31, 101, 157

Why are those the prime factors of the number 110,111,008?

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 110,111,008

110,111,008
Factor Arrows
255,055,504
Factor Arrows
227,527,752
Factor Arrows
213,763,876
Factor Arrows
26,881,938
Factor Arrows
23,440,969
Factor Arrows
7491,567
Factor Arrows
3115,857
Factor Arrows
101157

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, 7, 31, 101, 157

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 31 x 101 x 157 = 110,111,008

This can also be written as 25 x 71 x 311 x 1011 x 1571 = 110,111,008

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


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