Q: What are the prime factors of the number 30,894,930?

 A: 2, 3, 5, 11, 2837

Why are those the prime factors of the number 30,894,930?

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 30,894,930

30,894,930
Factor Arrows
215,447,465
Factor Arrows
35,149,155
Factor Arrows
31,716,385
Factor Arrows
5343,277
Factor Arrows
1131,207
Factor Arrows
112,837

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, 11, 2837

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 11 x 11 x 2,837 = 30,894,930

This can also be written as 21 x 32 x 51 x 112 x 2,8371 = 30,894,930

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


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