Q: What are the prime factors of the number 19,057,760?

 A: 2, 5, 19, 6269

Why are those the prime factors of the number 19,057,760?

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 19,057,760

19,057,760
Factor Arrows
29,528,880
Factor Arrows
24,764,440
Factor Arrows
22,382,220
Factor Arrows
21,191,110
Factor Arrows
2595,555
Factor Arrows
5119,111
Factor Arrows
196,269

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, 5, 19, 6269

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 19 x 6,269 = 19,057,760

This can also be written as 25 x 51 x 191 x 6,2691 = 19,057,760

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


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