Q: What are the prime factors of the number 11,313,500?

 A: 2, 5, 11, 17

Why are those the prime factors of the number 11,313,500?

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 11,313,500

11,313,500
Factor Arrows
25,656,750
Factor Arrows
22,828,375
Factor Arrows
5565,675
Factor Arrows
5113,135
Factor Arrows
522,627
Factor Arrows
112,057
Factor Arrows
11187
Factor Arrows
1117

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, 11, 17

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 5 x 11 x 11 x 11 x 17 = 11,313,500

This can also be written as 22 x 53 x 113 x 171 = 11,313,500

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


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