Q: What are the prime factors of the number 207,774?

 A: 2, 3, 7, 17, 97

Why are those the prime factors of the number 207,774?

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 207,774

207,774
Factor Arrows
2103,887
Factor Arrows
334,629
Factor Arrows
311,543
Factor Arrows
71,649
Factor Arrows
1797

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, 7, 17, 97

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 17 x 97 = 207,774

This can also be written as 21 x 32 x 71 x 171 x 971 = 207,774

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


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