Q: What are the prime factors of the number 170,147,200?

 A: 2, 5, 53171

Why are those the prime factors of the number 170,147,200?

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 170,147,200

170,147,200
Factor Arrows
285,073,600
Factor Arrows
242,536,800
Factor Arrows
221,268,400
Factor Arrows
210,634,200
Factor Arrows
25,317,100
Factor Arrows
22,658,550
Factor Arrows
21,329,275
Factor Arrows
5265,855
Factor Arrows
553,171

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, 5, 53171

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 5 x 53,171 = 170,147,200

This can also be written as 27 x 52 x 53,1711 = 170,147,200

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


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