Q: What are the prime factors of the number 30,308,800?

 A: 2, 5, 19, 997

Why are those the prime factors of the number 30,308,800?

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 30,308,800

30,308,800
Factor Arrows
215,154,400
Factor Arrows
27,577,200
Factor Arrows
23,788,600
Factor Arrows
21,894,300
Factor Arrows
2947,150
Factor Arrows
2473,575
Factor Arrows
594,715
Factor Arrows
518,943
Factor Arrows
19997

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, 19, 997

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 5 x 5 x 19 x 997 = 30,308,800

This can also be written as 26 x 52 x 191 x 9971 = 30,308,800

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


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