Q: What are the prime factors of the number 170,702,147?

 A: 7, 11, 41, 139, 389

Why are those the prime factors of the number 170,702,147?

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 170,702,147

170,702,147
Factor Arrows
724,386,021
Factor Arrows
112,216,911
Factor Arrows
4154,071
Factor Arrows
139389

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:

7, 11, 41, 139, 389

We can check our work by multiplying all of the prime factors together: 7 x 11 x 41 x 139 x 389 = 170,702,147

This can also be written as 71 x 111 x 411 x 1391 x 3891 = 170,702,147

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


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