Q: What are the prime factors of the number 30,101,220?

 A: 2, 3, 5, 17, 1093

Why are those the prime factors of the number 30,101,220?

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 30,101,220

30,101,220
Factor Arrows
215,050,610
Factor Arrows
27,525,305
Factor Arrows
32,508,435
Factor Arrows
3836,145
Factor Arrows
3278,715
Factor Arrows
392,905
Factor Arrows
518,581
Factor Arrows
171,093

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, 5, 17, 1093

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 5 x 17 x 1,093 = 30,101,220

This can also be written as 22 x 34 x 51 x 171 x 1,0931 = 30,101,220

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


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