Q: What are the prime factors of the number 30,513,216?

 A: 2, 3, 158923

Why are those the prime factors of the number 30,513,216?

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 30,513,216

30,513,216
Factor Arrows
215,256,608
Factor Arrows
27,628,304
Factor Arrows
23,814,152
Factor Arrows
21,907,076
Factor Arrows
2953,538
Factor Arrows
2476,769
Factor Arrows
3158,923

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, 158923

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 158,923 = 30,513,216

This can also be written as 26 x 31 x 158,9231 = 30,513,216

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


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