Q: What are the prime factors of the number 17,162,520?

 A: 2, 3, 5, 17, 47, 179

Why are those the prime factors of the number 17,162,520?

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 17,162,520

17,162,520
Factor Arrows
28,581,260
Factor Arrows
24,290,630
Factor Arrows
22,145,315
Factor Arrows
3715,105
Factor Arrows
5143,021
Factor Arrows
178,413
Factor Arrows
47179

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, 17, 47, 179

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 17 x 47 x 179 = 17,162,520

This can also be written as 23 x 31 x 51 x 171 x 471 x 1791 = 17,162,520

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


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