Q: What are the prime factors of the number 111,551,488?

 A: 2, 41, 2657

Why are those the prime factors of the number 111,551,488?

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 111,551,488

111,551,488
Factor Arrows
255,775,744
Factor Arrows
227,887,872
Factor Arrows
213,943,936
Factor Arrows
26,971,968
Factor Arrows
23,485,984
Factor Arrows
21,742,992
Factor Arrows
2871,496
Factor Arrows
2435,748
Factor Arrows
2217,874
Factor Arrows
2108,937
Factor Arrows
412,657

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, 41, 2657

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 2 x 2 x 2 x 41 x 2,657 = 111,551,488

This can also be written as 210 x 411 x 2,6571 = 111,551,488

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


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