Q: What are the prime factors of the number 43,230?

 A: 2, 3, 5, 11, 131

Why are those the prime factors of the number 43,230?

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 43,230

43,230
Factor Arrows
221,615
Factor Arrows
37,205
Factor Arrows
51,441
Factor Arrows
11131

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, 5, 11, 131

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 11 x 131 = 43,230

This can also be written as 21 x 31 x 51 x 111 x 1311 = 43,230

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


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