Q: What are the prime factors of the number 105,088?

 A: 2, 821

Why are those the prime factors of the number 105,088?

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 105,088

105,088
Factor Arrows
252,544
Factor Arrows
226,272
Factor Arrows
213,136
Factor Arrows
26,568
Factor Arrows
23,284
Factor Arrows
21,642
Factor Arrows
2821

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, 821

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 821 = 105,088

This can also be written as 27 x 8211 = 105,088

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


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