Q: What are the prime factors of the number 327,807?

 A: 3, 19, 71

Why are those the prime factors of the number 327,807?

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 327,807

327,807
Factor Arrows
3109,269
Factor Arrows
336,423
Factor Arrows
312,141
Factor Arrows
34,047
Factor Arrows
31,349
Factor Arrows
1971

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:

3, 19, 71

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 19 x 71 = 327,807

This can also be written as 35 x 191 x 711 = 327,807

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


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