Q: What are the prime factors of the number 17,245,173?

 A: 3, 11, 263, 1987

Why are those the prime factors of the number 17,245,173?

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 17,245,173

17,245,173
Factor Arrows
35,748,391
Factor Arrows
11522,581
Factor Arrows
2631,987

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, 11, 263, 1987

We can check our work by multiplying all of the prime factors together: 3 x 11 x 263 x 1,987 = 17,245,173

This can also be written as 31 x 111 x 2631 x 1,9871 = 17,245,173

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


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