Q: What are the prime factors of the number 47,508,768?

 A: 2, 3, 18329

Why are those the prime factors of the number 47,508,768?

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 47,508,768

47,508,768
Factor Arrows
223,754,384
Factor Arrows
211,877,192
Factor Arrows
25,938,596
Factor Arrows
22,969,298
Factor Arrows
21,484,649
Factor Arrows
3494,883
Factor Arrows
3164,961
Factor Arrows
354,987
Factor Arrows
318,329

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, 18329

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 3 x 3 x 18,329 = 47,508,768

This can also be written as 25 x 34 x 18,3291 = 47,508,768

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


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