Q: What are the prime factors of the number 215,748?

 A: 2, 3, 13, 461

Why are those the prime factors of the number 215,748?

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 215,748

215,748
Factor Arrows
2107,874
Factor Arrows
253,937
Factor Arrows
317,979
Factor Arrows
35,993
Factor Arrows
13461

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, 461

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 13 x 461 = 215,748

This can also be written as 22 x 32 x 131 x 4611 = 215,748

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


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