Q: What are the prime factors of the number 166,033,504?

 A: 2, 7, 13, 23, 37, 67

Why are those the prime factors of the number 166,033,504?

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 166,033,504

166,033,504
Factor Arrows
283,016,752
Factor Arrows
241,508,376
Factor Arrows
220,754,188
Factor Arrows
210,377,094
Factor Arrows
25,188,547
Factor Arrows
7741,221
Factor Arrows
1357,017
Factor Arrows
232,479
Factor Arrows
3767

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, 7, 13, 23, 37, 67

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 13 x 23 x 37 x 67 = 166,033,504

This can also be written as 25 x 71 x 131 x 231 x 371 x 671 = 166,033,504

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


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