Q: What are the prime factors of the number 163,600?

 A: 2, 5, 409

Why are those the prime factors of the number 163,600?

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 163,600

163,600
Factor Arrows
281,800
Factor Arrows
240,900
Factor Arrows
220,450
Factor Arrows
210,225
Factor Arrows
52,045
Factor Arrows
5409

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, 5, 409

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 409 = 163,600

This can also be written as 24 x 52 x 4091 = 163,600

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


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