Q: What are the prime factors of the number 218,792?

 A: 2, 7, 3907

Why are those the prime factors of the number 218,792?

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 218,792

218,792
Factor Arrows
2109,396
Factor Arrows
254,698
Factor Arrows
227,349
Factor Arrows
73,907

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, 3907

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 3,907 = 218,792

This can also be written as 23 x 71 x 3,9071 = 218,792

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


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