Q: What are the prime factors of the number 212,992?

 A: 2, 13

Why are those the prime factors of the number 212,992?

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 212,992

212,992
Factor Arrows
2106,496
Factor Arrows
253,248
Factor Arrows
226,624
Factor Arrows
213,312
Factor Arrows
26,656
Factor Arrows
23,328
Factor Arrows
21,664
Factor Arrows
2832
Factor Arrows
2416
Factor Arrows
2208
Factor Arrows
2104
Factor Arrows
252
Factor Arrows
226
Factor Arrows
213

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, 13

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 2 x 2 x 2 x 2 x 2 x 2 x 13 = 212,992

This can also be written as 214 x 131 = 212,992

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


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