Q: What are the prime factors of the number 218,288?

 A: 2, 7, 1949

Why are those the prime factors of the number 218,288?

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 218,288

218,288
Factor Arrows
2109,144
Factor Arrows
254,572
Factor Arrows
227,286
Factor Arrows
213,643
Factor Arrows
71,949

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, 1949

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 1,949 = 218,288

This can also be written as 24 x 71 x 1,9491 = 218,288

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


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