Q: What are the prime factors of the number 189,228?

 A: 2, 3, 13, 1213

Why are those the prime factors of the number 189,228?

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 189,228

189,228
Factor Arrows
294,614
Factor Arrows
247,307
Factor Arrows
315,769
Factor Arrows
131,213

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, 3, 13, 1213

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 13 x 1,213 = 189,228

This can also be written as 22 x 31 x 131 x 1,2131 = 189,228

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


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