Q: What are the prime factors of the number 19,010,112?

 A: 2, 3, 11, 9001

Why are those the prime factors of the number 19,010,112?

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 19,010,112

19,010,112
Factor Arrows
29,505,056
Factor Arrows
24,752,528
Factor Arrows
22,376,264
Factor Arrows
21,188,132
Factor Arrows
2594,066
Factor Arrows
2297,033
Factor Arrows
399,011
Factor Arrows
119,001

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, 11, 9001

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 3 x 11 x 9,001 = 19,010,112

This can also be written as 26 x 31 x 111 x 9,0011 = 19,010,112

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


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