Q: What are the prime factors of the number 11,433,312?

 A: 2, 3, 11, 401

Why are those the prime factors of the number 11,433,312?

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 11,433,312

11,433,312
Factor Arrows
25,716,656
Factor Arrows
22,858,328
Factor Arrows
21,429,164
Factor Arrows
2714,582
Factor Arrows
2357,291
Factor Arrows
3119,097
Factor Arrows
339,699
Factor Arrows
313,233
Factor Arrows
34,411
Factor Arrows
11401

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, 11, 401

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 11 x 401 = 11,433,312

This can also be written as 25 x 34 x 111 x 4011 = 11,433,312

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


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