Q: What are the prime factors of the number 47,928,240?

 A: 2, 3, 5, 22189

Why are those the prime factors of the number 47,928,240?

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 47,928,240

47,928,240
Factor Arrows
223,964,120
Factor Arrows
211,982,060
Factor Arrows
25,991,030
Factor Arrows
22,995,515
Factor Arrows
3998,505
Factor Arrows
3332,835
Factor Arrows
3110,945
Factor Arrows
522,189

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, 5, 22189

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 5 x 22,189 = 47,928,240

This can also be written as 24 x 33 x 51 x 22,1891 = 47,928,240

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


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