Q: What are the prime factors of the number 223,888?

 A: 2, 7, 1999

Why are those the prime factors of the number 223,888?

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 223,888

223,888
Factor Arrows
2111,944
Factor Arrows
255,972
Factor Arrows
227,986
Factor Arrows
213,993
Factor Arrows
71,999

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, 1999

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 1,999 = 223,888

This can also be written as 24 x 71 x 1,9991 = 223,888

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


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