Q: What are the prime factors of the number 235,450,240?

 A: 2, 5, 37, 61, 163

Why are those the prime factors of the number 235,450,240?

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 235,450,240

235,450,240
Factor Arrows
2117,725,120
Factor Arrows
258,862,560
Factor Arrows
229,431,280
Factor Arrows
214,715,640
Factor Arrows
27,357,820
Factor Arrows
23,678,910
Factor Arrows
21,839,455
Factor Arrows
5367,891
Factor Arrows
379,943
Factor Arrows
61163

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, 37, 61, 163

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 5 x 37 x 61 x 163 = 235,450,240

This can also be written as 27 x 51 x 371 x 611 x 1631 = 235,450,240

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


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