Q: What are the prime factors of the number 30,322,400?

 A: 2, 5, 29, 1307

Why are those the prime factors of the number 30,322,400?

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 30,322,400

30,322,400
Factor Arrows
215,161,200
Factor Arrows
27,580,600
Factor Arrows
23,790,300
Factor Arrows
21,895,150
Factor Arrows
2947,575
Factor Arrows
5189,515
Factor Arrows
537,903
Factor Arrows
291,307

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, 29, 1307

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 5 x 29 x 1,307 = 30,322,400

This can also be written as 25 x 52 x 291 x 1,3071 = 30,322,400

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


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