Q: What are the prime factors of the number 18,724,096?

 A: 2, 73141

Why are those the prime factors of the number 18,724,096?

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 18,724,096

18,724,096
Factor Arrows
29,362,048
Factor Arrows
24,681,024
Factor Arrows
22,340,512
Factor Arrows
21,170,256
Factor Arrows
2585,128
Factor Arrows
2292,564
Factor Arrows
2146,282
Factor Arrows
273,141

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, 73141

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 73,141 = 18,724,096

This can also be written as 28 x 73,1411 = 18,724,096

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


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