Q: What are the prime factors of the number 163,808?

 A: 2, 5119

Why are those the prime factors of the number 163,808?

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 163,808

163,808
Factor Arrows
281,904
Factor Arrows
240,952
Factor Arrows
220,476
Factor Arrows
210,238
Factor Arrows
25,119

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, 5119

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5,119 = 163,808

This can also be written as 25 x 5,1191 = 163,808

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


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