Q: What are the prime factors of the number 171,743,568?

 A: 2, 3, 29, 123379

Why are those the prime factors of the number 171,743,568?

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 171,743,568

171,743,568
Factor Arrows
285,871,784
Factor Arrows
242,935,892
Factor Arrows
221,467,946
Factor Arrows
210,733,973
Factor Arrows
33,577,991
Factor Arrows
29123,379

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, 29, 123379

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 29 x 123,379 = 171,743,568

This can also be written as 24 x 31 x 291 x 123,3791 = 171,743,568

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


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