Q: What are the prime factors of the number 14,872,896?

 A: 2, 3, 19, 151

Why are those the prime factors of the number 14,872,896?

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 14,872,896

14,872,896
Factor Arrows
27,436,448
Factor Arrows
23,718,224
Factor Arrows
21,859,112
Factor Arrows
2929,556
Factor Arrows
2464,778
Factor Arrows
2232,389
Factor Arrows
377,463
Factor Arrows
325,821
Factor Arrows
38,607
Factor Arrows
32,869
Factor Arrows
19151

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, 151

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 3 x 3 x 3 x 3 x 19 x 151 = 14,872,896

This can also be written as 26 x 34 x 191 x 1511 = 14,872,896

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


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