Q: What are the prime factors of the number 47,303,168?

 A: 2, 11, 37, 227

Why are those the prime factors of the number 47,303,168?

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 47,303,168

47,303,168
Factor Arrows
223,651,584
Factor Arrows
211,825,792
Factor Arrows
25,912,896
Factor Arrows
22,956,448
Factor Arrows
21,478,224
Factor Arrows
2739,112
Factor Arrows
2369,556
Factor Arrows
2184,778
Factor Arrows
292,389
Factor Arrows
118,399
Factor Arrows
37227

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, 11, 37, 227

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 11 x 37 x 227 = 47,303,168

This can also be written as 29 x 111 x 371 x 2271 = 47,303,168

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


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