Q: What are the prime factors of the number 218,712?

 A: 2, 3, 13, 701

Why are those the prime factors of the number 218,712?

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 218,712

218,712
Factor Arrows
2109,356
Factor Arrows
254,678
Factor Arrows
227,339
Factor Arrows
39,113
Factor Arrows
13701

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, 701

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 13 x 701 = 218,712

This can also be written as 23 x 31 x 131 x 7011 = 218,712

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


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