Q: What are the prime factors of the number 47,638,816?

 A: 2, 31, 48023

Why are those the prime factors of the number 47,638,816?

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 47,638,816

47,638,816
Factor Arrows
223,819,408
Factor Arrows
211,909,704
Factor Arrows
25,954,852
Factor Arrows
22,977,426
Factor Arrows
21,488,713
Factor Arrows
3148,023

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, 31, 48023

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 31 x 48,023 = 47,638,816

This can also be written as 25 x 311 x 48,0231 = 47,638,816

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


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