Q: What are the prime factors of the number 224,224?

 A: 2, 7, 11, 13

Why are those the prime factors of the number 224,224?

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 224,224

224,224
Factor Arrows
2112,112
Factor Arrows
256,056
Factor Arrows
228,028
Factor Arrows
214,014
Factor Arrows
27,007
Factor Arrows
71,001
Factor Arrows
7143
Factor Arrows
1113

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, 11, 13

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 7 x 11 x 13 = 224,224

This can also be written as 25 x 72 x 111 x 131 = 224,224

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


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