Q: What are the prime factors of the number 185,045?

 A: 5, 7, 17, 311

Why are those the prime factors of the number 185,045?

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 185,045

185,045
Factor Arrows
537,009
Factor Arrows
75,287
Factor Arrows
17311

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:

5, 7, 17, 311

We can check our work by multiplying all of the prime factors together: 5 x 7 x 17 x 311 = 185,045

This can also be written as 51 x 71 x 171 x 3111 = 185,045

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


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