Q: What are the prime factors of the number 164,144?

 A: 2, 10259

Why are those the prime factors of the number 164,144?

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 164,144

164,144
Factor Arrows
282,072
Factor Arrows
241,036
Factor Arrows
220,518
Factor Arrows
210,259

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, 10259

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 10,259 = 164,144

This can also be written as 24 x 10,2591 = 164,144

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


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