Q: What are the prime factors of the number 823,176,189?

 A: 3, 11, 47, 1787

Why are those the prime factors of the number 823,176,189?

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 823,176,189

823,176,189
Factor Arrows
3274,392,063
Factor Arrows
391,464,021
Factor Arrows
330,488,007
Factor Arrows
310,162,669
Factor Arrows
11923,879
Factor Arrows
1183,989
Factor Arrows
471,787

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:

3, 11, 47, 1787

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 11 x 11 x 47 x 1,787 = 823,176,189

This can also be written as 34 x 112 x 471 x 1,7871 = 823,176,189

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


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