Q: What are the prime factors of the number 18,383,814?

 A: 2, 3, 61, 5581

Why are those the prime factors of the number 18,383,814?

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 18,383,814

18,383,814
Factor Arrows
29,191,907
Factor Arrows
33,063,969
Factor Arrows
31,021,323
Factor Arrows
3340,441
Factor Arrows
615,581

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, 61, 5581

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 61 x 5,581 = 18,383,814

This can also be written as 21 x 33 x 611 x 5,5811 = 18,383,814

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


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