Q: What are the prime factors of the number 106,590?

 A: 2, 3, 5, 11, 17, 19

Why are those the prime factors of the number 106,590?

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 106,590

106,590
Factor Arrows
253,295
Factor Arrows
317,765
Factor Arrows
53,553
Factor Arrows
11323
Factor Arrows
1719

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, 5, 11, 17, 19

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 11 x 17 x 19 = 106,590

This can also be written as 21 x 31 x 51 x 111 x 171 x 191 = 106,590

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


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