Q: What are the prime factors of the number 207,368?

 A: 2, 7, 23

Why are those the prime factors of the number 207,368?

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 207,368

207,368
Factor Arrows
2103,684
Factor Arrows
251,842
Factor Arrows
225,921
Factor Arrows
73,703
Factor Arrows
7529
Factor Arrows
2323

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, 7, 23

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 7 x 23 x 23 = 207,368

This can also be written as 23 x 72 x 232 = 207,368

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


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