Q: What are the prime factors of the number 30,352,256?

 A: 2, 11, 21557

Why are those the prime factors of the number 30,352,256?

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 30,352,256

30,352,256
Factor Arrows
215,176,128
Factor Arrows
27,588,064
Factor Arrows
23,794,032
Factor Arrows
21,897,016
Factor Arrows
2948,508
Factor Arrows
2474,254
Factor Arrows
2237,127
Factor Arrows
1121,557

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, 11, 21557

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 2 x 11 x 21,557 = 30,352,256

This can also be written as 27 x 111 x 21,5571 = 30,352,256

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


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