Q: What are the prime factors of the number 89,197,812?

 A: 2, 3, 11, 20477

Why are those the prime factors of the number 89,197,812?

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 89,197,812

89,197,812
Factor Arrows
244,598,906
Factor Arrows
222,299,453
Factor Arrows
37,433,151
Factor Arrows
32,477,717
Factor Arrows
11225,247
Factor Arrows
1120,477

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, 11, 20477

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 11 x 11 x 20,477 = 89,197,812

This can also be written as 22 x 32 x 112 x 20,4771 = 89,197,812

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


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