Q: What are the prime factors of the number 212,736?

 A: 2, 3, 277

Why are those the prime factors of the number 212,736?

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 212,736

212,736
Factor Arrows
2106,368
Factor Arrows
253,184
Factor Arrows
226,592
Factor Arrows
213,296
Factor Arrows
26,648
Factor Arrows
23,324
Factor Arrows
21,662
Factor Arrows
2831
Factor Arrows
3277

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, 277

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 277 = 212,736

This can also be written as 28 x 31 x 2771 = 212,736

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


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