Q: What are the prime factors of the number 211,956?

 A: 2, 3, 17, 1039

Why are those the prime factors of the number 211,956?

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 211,956

211,956
Factor Arrows
2105,978
Factor Arrows
252,989
Factor Arrows
317,663
Factor Arrows
171,039

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, 17, 1039

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 17 x 1,039 = 211,956

This can also be written as 22 x 31 x 171 x 1,0391 = 211,956

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


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