Q: What are the prime factors of the number 323,712?

 A: 2, 3, 281

Why are those the prime factors of the number 323,712?

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 323,712

323,712
Factor Arrows
2161,856
Factor Arrows
280,928
Factor Arrows
240,464
Factor Arrows
220,232
Factor Arrows
210,116
Factor Arrows
25,058
Factor Arrows
22,529
Factor Arrows
3843
Factor Arrows
3281

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, 281

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 2 x 3 x 3 x 281 = 323,712

This can also be written as 27 x 32 x 2811 = 323,712

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


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