Q: What are the prime factors of the number 233,802,912?

 A: 2, 3, 7, 23, 2161

Why are those the prime factors of the number 233,802,912?

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 233,802,912

233,802,912
Factor Arrows
2116,901,456
Factor Arrows
258,450,728
Factor Arrows
229,225,364
Factor Arrows
214,612,682
Factor Arrows
27,306,341
Factor Arrows
32,435,447
Factor Arrows
7347,921
Factor Arrows
749,703
Factor Arrows
232,161

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, 7, 23, 2161

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 7 x 7 x 23 x 2,161 = 233,802,912

This can also be written as 25 x 31 x 72 x 231 x 2,1611 = 233,802,912

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


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