Q: What are the prime factors of the number 12,333,568?

 A: 2, 13, 17, 109

Why are those the prime factors of the number 12,333,568?

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 12,333,568

12,333,568
Factor Arrows
26,166,784
Factor Arrows
23,083,392
Factor Arrows
21,541,696
Factor Arrows
2770,848
Factor Arrows
2385,424
Factor Arrows
2192,712
Factor Arrows
296,356
Factor Arrows
248,178
Factor Arrows
224,089
Factor Arrows
131,853
Factor Arrows
17109

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, 13, 17, 109

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 2 x 2 x 13 x 17 x 109 = 12,333,568

This can also be written as 29 x 131 x 171 x 1091 = 12,333,568

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


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