Q: What are the prime factors of the number 11,220,336?

 A: 2, 3, 19, 1367

Why are those the prime factors of the number 11,220,336?

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 11,220,336

11,220,336
Factor Arrows
25,610,168
Factor Arrows
22,805,084
Factor Arrows
21,402,542
Factor Arrows
2701,271
Factor Arrows
3233,757
Factor Arrows
377,919
Factor Arrows
325,973
Factor Arrows
191,367

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, 19, 1367

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 19 x 1,367 = 11,220,336

This can also be written as 24 x 33 x 191 x 1,3671 = 11,220,336

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


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