Q: What are the prime factors of the number 14,354,688?

 A: 2, 3, 18691

Why are those the prime factors of the number 14,354,688?

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 14,354,688

14,354,688
Factor Arrows
27,177,344
Factor Arrows
23,588,672
Factor Arrows
21,794,336
Factor Arrows
2897,168
Factor Arrows
2448,584
Factor Arrows
2224,292
Factor Arrows
2112,146
Factor Arrows
256,073
Factor Arrows
318,691

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, 18691

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 3 x 18,691 = 14,354,688

This can also be written as 28 x 31 x 18,6911 = 14,354,688

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


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