Q: What are the prime factors of the number 189,952?

 A: 2, 7, 53

Why are those the prime factors of the number 189,952?

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 189,952

189,952
Factor Arrows
294,976
Factor Arrows
247,488
Factor Arrows
223,744
Factor Arrows
211,872
Factor Arrows
25,936
Factor Arrows
22,968
Factor Arrows
21,484
Factor Arrows
2742
Factor Arrows
2371
Factor Arrows
753

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, 7, 53

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 2 x 2 x 7 x 53 = 189,952

This can also be written as 29 x 71 x 531 = 189,952

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


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