Q: What are the prime factors of the number 210,368?

 A: 2, 19, 173

Why are those the prime factors of the number 210,368?

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 210,368

210,368
Factor Arrows
2105,184
Factor Arrows
252,592
Factor Arrows
226,296
Factor Arrows
213,148
Factor Arrows
26,574
Factor Arrows
23,287
Factor Arrows
19173

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, 19, 173

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 19 x 173 = 210,368

This can also be written as 26 x 191 x 1731 = 210,368

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


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