Q: What are the prime factors of the number 11,806,389?

 A: 3, 7, 193, 971

Why are those the prime factors of the number 11,806,389?

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 11,806,389

11,806,389
Factor Arrows
33,935,463
Factor Arrows
31,311,821
Factor Arrows
7187,403
Factor Arrows
193971

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, 7, 193, 971

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 193 x 971 = 11,806,389

This can also be written as 32 x 71 x 1931 x 9711 = 11,806,389

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


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