Q: What are the prime factors of the number 133,172,288?

 A: 2, 17, 122401

Why are those the prime factors of the number 133,172,288?

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 133,172,288

133,172,288
Factor Arrows
266,586,144
Factor Arrows
233,293,072
Factor Arrows
216,646,536
Factor Arrows
28,323,268
Factor Arrows
24,161,634
Factor Arrows
22,080,817
Factor Arrows
17122,401

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, 17, 122401

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 17 x 122,401 = 133,172,288

This can also be written as 26 x 171 x 122,4011 = 133,172,288

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


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