Q: What are the prime factors of the number 106,392?

 A: 2, 3, 11, 13, 31

Why are those the prime factors of the number 106,392?

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 106,392

106,392
Factor Arrows
253,196
Factor Arrows
226,598
Factor Arrows
213,299
Factor Arrows
34,433
Factor Arrows
11403
Factor Arrows
1331

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, 11, 13, 31

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 11 x 13 x 31 = 106,392

This can also be written as 23 x 31 x 111 x 131 x 311 = 106,392

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


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