Q: What are the prime factors of the number 28,940,500?

 A: 2, 5, 57881

Why are those the prime factors of the number 28,940,500?

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 28,940,500

28,940,500
Factor Arrows
214,470,250
Factor Arrows
27,235,125
Factor Arrows
51,447,025
Factor Arrows
5289,405
Factor Arrows
557,881

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, 5, 57881

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 5 x 57,881 = 28,940,500

This can also be written as 22 x 53 x 57,8811 = 28,940,500

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


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