Q: What are the prime factors of the number 43,488?

 A: 2, 3, 151

Why are those the prime factors of the number 43,488?

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 43,488

43,488
Factor Arrows
221,744
Factor Arrows
210,872
Factor Arrows
25,436
Factor Arrows
22,718
Factor Arrows
21,359
Factor Arrows
3453
Factor Arrows
3151

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, 151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 151 = 43,488

This can also be written as 25 x 32 x 1511 = 43,488

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


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