Q: What are the prime factors of the number 173,540,250?

 A: 2, 3, 5, 13, 17, 349

Why are those the prime factors of the number 173,540,250?

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 173,540,250

173,540,250
Factor Arrows
286,770,125
Factor Arrows
328,923,375
Factor Arrows
39,641,125
Factor Arrows
51,928,225
Factor Arrows
5385,645
Factor Arrows
577,129
Factor Arrows
135,933
Factor Arrows
17349

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, 5, 13, 17, 349

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 5 x 5 x 13 x 17 x 349 = 173,540,250

This can also be written as 21 x 32 x 53 x 131 x 171 x 3491 = 173,540,250

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


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