Q: What are the prime factors of the number 173,120,850?

 A: 2, 3, 5, 7, 54959

Why are those the prime factors of the number 173,120,850?

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 173,120,850

173,120,850
Factor Arrows
286,560,425
Factor Arrows
328,853,475
Factor Arrows
39,617,825
Factor Arrows
51,923,565
Factor Arrows
5384,713
Factor Arrows
754,959

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, 7, 54959

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 5 x 7 x 54,959 = 173,120,850

This can also be written as 21 x 32 x 52 x 71 x 54,9591 = 173,120,850

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


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