Q: What are the prime factors of the number 172,263,348?

 A: 2, 3, 19, 27983

Why are those the prime factors of the number 172,263,348?

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 172,263,348

172,263,348
Factor Arrows
286,131,674
Factor Arrows
243,065,837
Factor Arrows
314,355,279
Factor Arrows
34,785,093
Factor Arrows
31,595,031
Factor Arrows
3531,677
Factor Arrows
1927,983

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, 19, 27983

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 19 x 27,983 = 172,263,348

This can also be written as 22 x 34 x 191 x 27,9831 = 172,263,348

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


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