Q: What are the prime factors of the number 20,100,024?

 A: 2, 3, 7, 19, 2099

Why are those the prime factors of the number 20,100,024?

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 20,100,024

20,100,024
Factor Arrows
210,050,012
Factor Arrows
25,025,006
Factor Arrows
22,512,503
Factor Arrows
3837,501
Factor Arrows
3279,167
Factor Arrows
739,881
Factor Arrows
192,099

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, 7, 19, 2099

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 7 x 19 x 2,099 = 20,100,024

This can also be written as 23 x 32 x 71 x 191 x 2,0991 = 20,100,024

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


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