Q: What are the prime factors of the number 19,112,496?

 A: 2, 3, 13, 109, 281

Why are those the prime factors of the number 19,112,496?

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 19,112,496

19,112,496
Factor Arrows
29,556,248
Factor Arrows
24,778,124
Factor Arrows
22,389,062
Factor Arrows
21,194,531
Factor Arrows
3398,177
Factor Arrows
1330,629
Factor Arrows
109281

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, 13, 109, 281

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 13 x 109 x 281 = 19,112,496

This can also be written as 24 x 31 x 131 x 1091 x 2811 = 19,112,496

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


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