Q: What are the prime factors of the number 259,425?

 A: 3, 5, 1153

Why are those the prime factors of the number 259,425?

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 259,425

259,425
Factor Arrows
386,475
Factor Arrows
328,825
Factor Arrows
55,765
Factor Arrows
51,153

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:

3, 5, 1153

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 5 x 1,153 = 259,425

This can also be written as 32 x 52 x 1,1531 = 259,425

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


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