Q: What are the prime factors of the number 170,182,400?

 A: 2, 5, 26591

Why are those the prime factors of the number 170,182,400?

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 170,182,400

170,182,400
Factor Arrows
285,091,200
Factor Arrows
242,545,600
Factor Arrows
221,272,800
Factor Arrows
210,636,400
Factor Arrows
25,318,200
Factor Arrows
22,659,100
Factor Arrows
21,329,550
Factor Arrows
2664,775
Factor Arrows
5132,955
Factor Arrows
526,591

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, 26591

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 2 x 5 x 5 x 26,591 = 170,182,400

This can also be written as 28 x 52 x 26,5911 = 170,182,400

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


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