Q: What are the prime factors of the number 166,210,275?

 A: 3, 5, 7, 11, 17, 1693

Why are those the prime factors of the number 166,210,275?

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 166,210,275

166,210,275
Factor Arrows
355,403,425
Factor Arrows
511,080,685
Factor Arrows
52,216,137
Factor Arrows
7316,591
Factor Arrows
1128,781
Factor Arrows
171,693

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:

3, 5, 7, 11, 17, 1693

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 7 x 11 x 17 x 1,693 = 166,210,275

This can also be written as 31 x 52 x 71 x 111 x 171 x 1,6931 = 166,210,275

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


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