Q: What are the prime factors of the number 30,225,408?

 A: 2, 3, 9839

Why are those the prime factors of the number 30,225,408?

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 30,225,408

30,225,408
Factor Arrows
215,112,704
Factor Arrows
27,556,352
Factor Arrows
23,778,176
Factor Arrows
21,889,088
Factor Arrows
2944,544
Factor Arrows
2472,272
Factor Arrows
2236,136
Factor Arrows
2118,068
Factor Arrows
259,034
Factor Arrows
229,517
Factor Arrows
39,839

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, 9839

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 2 x 2 x 2 x 2 x 3 x 9,839 = 30,225,408

This can also be written as 210 x 31 x 9,8391 = 30,225,408

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


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