Q: What are the prime factors of the number 206,113,554?

 A: 2, 3, 97, 1217

Why are those the prime factors of the number 206,113,554?

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 206,113,554

206,113,554
Factor Arrows
2103,056,777
Factor Arrows
334,352,259
Factor Arrows
311,450,753
Factor Arrows
97118,049
Factor Arrows
971,217

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, 97, 1217

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 97 x 97 x 1,217 = 206,113,554

This can also be written as 21 x 32 x 972 x 1,2171 = 206,113,554

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


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