Q: What are the prime factors of the number 205,660,224?

 A: 2, 3, 7, 11, 4637

Why are those the prime factors of the number 205,660,224?

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 205,660,224

205,660,224
Factor Arrows
2102,830,112
Factor Arrows
251,415,056
Factor Arrows
225,707,528
Factor Arrows
212,853,764
Factor Arrows
26,426,882
Factor Arrows
23,213,441
Factor Arrows
31,071,147
Factor Arrows
3357,049
Factor Arrows
751,007
Factor Arrows
114,637

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, 7, 11, 4637

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 7 x 11 x 4,637 = 205,660,224

This can also be written as 26 x 32 x 71 x 111 x 4,6371 = 205,660,224

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


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