Q: What are the prime factors of the number 29,328?

 A: 2, 3, 13, 47

Why are those the prime factors of the number 29,328?

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 29,328

29,328
Factor Arrows
214,664
Factor Arrows
27,332
Factor Arrows
23,666
Factor Arrows
21,833
Factor Arrows
3611
Factor Arrows
1347

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, 13, 47

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 13 x 47 = 29,328

This can also be written as 24 x 31 x 131 x 471 = 29,328

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


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