Q: What are the prime factors of the number 40,855,824?

 A: 2, 3, 283721

Why are those the prime factors of the number 40,855,824?

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 40,855,824

40,855,824
Factor Arrows
220,427,912
Factor Arrows
210,213,956
Factor Arrows
25,106,978
Factor Arrows
22,553,489
Factor Arrows
3851,163
Factor Arrows
3283,721

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, 283721

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 283,721 = 40,855,824

This can also be written as 24 x 32 x 283,7211 = 40,855,824

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


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