Q: What are the prime factors of the number 212,960?

 A: 2, 5, 11

Why are those the prime factors of the number 212,960?

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 212,960

212,960
Factor Arrows
2106,480
Factor Arrows
253,240
Factor Arrows
226,620
Factor Arrows
213,310
Factor Arrows
26,655
Factor Arrows
51,331
Factor Arrows
11121
Factor Arrows
1111

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, 5, 11

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 11 x 11 x 11 = 212,960

This can also be written as 25 x 51 x 113 = 212,960

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


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