Q: What are the prime factors of the number 3,123,168?

 A: 2, 3, 32533

Why are those the prime factors of the number 3,123,168?

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 3,123,168

3,123,168
Factor Arrows
21,561,584
Factor Arrows
2780,792
Factor Arrows
2390,396
Factor Arrows
2195,198
Factor Arrows
297,599
Factor Arrows
332,533

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, 32533

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 32,533 = 3,123,168

This can also be written as 25 x 31 x 32,5331 = 3,123,168

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


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