Q: What are the prime factors of the number 211,232?

 A: 2, 7, 23, 41

Why are those the prime factors of the number 211,232?

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 211,232

211,232
Factor Arrows
2105,616
Factor Arrows
252,808
Factor Arrows
226,404
Factor Arrows
213,202
Factor Arrows
26,601
Factor Arrows
7943
Factor Arrows
2341

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, 7, 23, 41

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 23 x 41 = 211,232

This can also be written as 25 x 71 x 231 x 411 = 211,232

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


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