Q: What are the prime factors of the number 47,250,216?

 A: 2, 3, 13, 71, 79

Why are those the prime factors of the number 47,250,216?

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 47,250,216

47,250,216
Factor Arrows
223,625,108
Factor Arrows
211,812,554
Factor Arrows
25,906,277
Factor Arrows
31,968,759
Factor Arrows
3656,253
Factor Arrows
3218,751
Factor Arrows
372,917
Factor Arrows
135,609
Factor Arrows
7179

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, 13, 71, 79

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 13 x 71 x 79 = 47,250,216

This can also be written as 23 x 34 x 131 x 711 x 791 = 47,250,216

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


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