Q: What are the prime factors of the number 40,488?

 A: 2, 3, 7, 241

Why are those the prime factors of the number 40,488?

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 40,488

40,488
Factor Arrows
220,244
Factor Arrows
210,122
Factor Arrows
25,061
Factor Arrows
31,687
Factor Arrows
7241

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, 7, 241

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 241 = 40,488

This can also be written as 23 x 31 x 71 x 2411 = 40,488

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


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