Q: What are the prime factors of the number 30,771,147?

 A: 3, 11, 103, 823

Why are those the prime factors of the number 30,771,147?

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 30,771,147

30,771,147
Factor Arrows
310,257,049
Factor Arrows
11932,459
Factor Arrows
1184,769
Factor Arrows
103823

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, 103, 823

We can check our work by multiplying all of the prime factors together: 3 x 11 x 11 x 103 x 823 = 30,771,147

This can also be written as 31 x 112 x 1031 x 8231 = 30,771,147

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


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