Q: What are the prime factors of the number 281,175?

 A: 3, 5, 23, 163

Why are those the prime factors of the number 281,175?

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 281,175

281,175
Factor Arrows
393,725
Factor Arrows
518,745
Factor Arrows
53,749
Factor Arrows
23163

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, 23, 163

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 23 x 163 = 281,175

This can also be written as 31 x 52 x 231 x 1631 = 281,175

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


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