Q: What are the prime factors of the number 169,408?

 A: 2, 2647

Why are those the prime factors of the number 169,408?

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 169,408

169,408
Factor Arrows
284,704
Factor Arrows
242,352
Factor Arrows
221,176
Factor Arrows
210,588
Factor Arrows
25,294
Factor Arrows
22,647

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, 2647

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 2,647 = 169,408

This can also be written as 26 x 2,6471 = 169,408

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


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