Q: What are the prime factors of the number 258,180?

 A: 2, 3, 5, 13, 331

Why are those the prime factors of the number 258,180?

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 258,180

258,180
Factor Arrows
2129,090
Factor Arrows
264,545
Factor Arrows
321,515
Factor Arrows
54,303
Factor Arrows
13331

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, 13, 331

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 13 x 331 = 258,180

This can also be written as 22 x 31 x 51 x 131 x 3311 = 258,180

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


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