Q: What are the prime factors of the number 126,288?

 A: 2, 3, 877

Why are those the prime factors of the number 126,288?

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 126,288

126,288
Factor Arrows
263,144
Factor Arrows
231,572
Factor Arrows
215,786
Factor Arrows
27,893
Factor Arrows
32,631
Factor Arrows
3877

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, 877

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 877 = 126,288

This can also be written as 24 x 32 x 8771 = 126,288

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


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