Q: What are the prime factors of the number 108,675?

 A: 3, 5, 7, 23

Why are those the prime factors of the number 108,675?

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 108,675

108,675
Factor Arrows
336,225
Factor Arrows
312,075
Factor Arrows
34,025
Factor Arrows
5805
Factor Arrows
5161
Factor Arrows
723

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:

3, 5, 7, 23

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 5 x 7 x 23 = 108,675

This can also be written as 33 x 52 x 71 x 231 = 108,675

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


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