Q: What are the prime factors of the number 30,021,312?

 A: 2, 3, 156361

Why are those the prime factors of the number 30,021,312?

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 30,021,312

30,021,312
Factor Arrows
215,010,656
Factor Arrows
27,505,328
Factor Arrows
23,752,664
Factor Arrows
21,876,332
Factor Arrows
2938,166
Factor Arrows
2469,083
Factor Arrows
3156,361

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, 156361

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 156,361 = 30,021,312

This can also be written as 26 x 31 x 156,3611 = 30,021,312

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


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