Q: What are the prime factors of the number 30,210,520?

 A: 2, 5, 691, 1093

Why are those the prime factors of the number 30,210,520?

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 30,210,520

30,210,520
Factor Arrows
215,105,260
Factor Arrows
27,552,630
Factor Arrows
23,776,315
Factor Arrows
5755,263
Factor Arrows
6911,093

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, 5, 691, 1093

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 691 x 1,093 = 30,210,520

This can also be written as 23 x 51 x 6911 x 1,0931 = 30,210,520

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


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