Q: What are the prime factors of the number 518,196?

 A: 2, 3, 7, 31, 199

Why are those the prime factors of the number 518,196?

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 518,196

518,196
Factor Arrows
2259,098
Factor Arrows
2129,549
Factor Arrows
343,183
Factor Arrows
76,169
Factor Arrows
31199

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, 7, 31, 199

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 31 x 199 = 518,196

This can also be written as 22 x 31 x 71 x 311 x 1991 = 518,196

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


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