Q: What are the prime factors of the number 11,553,408?

 A: 2, 3, 3343

Why are those the prime factors of the number 11,553,408?

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 11,553,408

11,553,408
Factor Arrows
25,776,704
Factor Arrows
22,888,352
Factor Arrows
21,444,176
Factor Arrows
2722,088
Factor Arrows
2361,044
Factor Arrows
2180,522
Factor Arrows
290,261
Factor Arrows
330,087
Factor Arrows
310,029
Factor Arrows
33,343

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, 3343

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 3 x 3 x 3 x 3,343 = 11,553,408

This can also be written as 27 x 33 x 3,3431 = 11,553,408

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


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