Q: What are the prime factors of the number 259,032,900?

 A: 2, 3, 5, 7, 23, 31, 173

Why are those the prime factors of the number 259,032,900?

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 259,032,900

259,032,900
Factor Arrows
2129,516,450
Factor Arrows
264,758,225
Factor Arrows
321,586,075
Factor Arrows
54,317,215
Factor Arrows
5863,443
Factor Arrows
7123,349
Factor Arrows
235,363
Factor Arrows
31173

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, 5, 7, 23, 31, 173

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 5 x 7 x 23 x 31 x 173 = 259,032,900

This can also be written as 22 x 31 x 52 x 71 x 231 x 311 x 1731 = 259,032,900

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


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