Q: What are the prime factors of the number 28,567,168?

 A: 2, 7, 31883

Why are those the prime factors of the number 28,567,168?

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 28,567,168

28,567,168
Factor Arrows
214,283,584
Factor Arrows
27,141,792
Factor Arrows
23,570,896
Factor Arrows
21,785,448
Factor Arrows
2892,724
Factor Arrows
2446,362
Factor Arrows
2223,181
Factor Arrows
731,883

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, 7, 31883

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 7 x 31,883 = 28,567,168

This can also be written as 27 x 71 x 31,8831 = 28,567,168

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


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