Q: What are the prime factors of the number 227,718,491?

 A: 7, 11, 13, 20681

Why are those the prime factors of the number 227,718,491?

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 227,718,491

227,718,491
Factor Arrows
732,531,213
Factor Arrows
112,957,383
Factor Arrows
11268,853
Factor Arrows
1320,681

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:

7, 11, 13, 20681

We can check our work by multiplying all of the prime factors together: 7 x 11 x 11 x 13 x 20,681 = 227,718,491

This can also be written as 71 x 112 x 131 x 20,6811 = 227,718,491

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


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