Q: What are the prime factors of the number 28,533,409?

 A: 23, 71, 101, 173

Why are those the prime factors of the number 28,533,409?

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 28,533,409

28,533,409
Factor Arrows
231,240,583
Factor Arrows
7117,473
Factor Arrows
101173

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:

23, 71, 101, 173

We can check our work by multiplying all of the prime factors together: 23 x 71 x 101 x 173 = 28,533,409

This can also be written as 231 x 711 x 1011 x 1731 = 28,533,409

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


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