Q: What are the prime factors of the number 47,332,120?

 A: 2, 5, 11, 97, 1109

Why are those the prime factors of the number 47,332,120?

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 47,332,120

47,332,120
Factor Arrows
223,666,060
Factor Arrows
211,833,030
Factor Arrows
25,916,515
Factor Arrows
51,183,303
Factor Arrows
11107,573
Factor Arrows
971,109

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, 5, 11, 97, 1109

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 11 x 97 x 1,109 = 47,332,120

This can also be written as 23 x 51 x 111 x 971 x 1,1091 = 47,332,120

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


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