Q: What are the prime factors of the number 19,417,696?

 A: 2, 19, 109, 293

Why are those the prime factors of the number 19,417,696?

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 19,417,696

19,417,696
Factor Arrows
29,708,848
Factor Arrows
24,854,424
Factor Arrows
22,427,212
Factor Arrows
21,213,606
Factor Arrows
2606,803
Factor Arrows
1931,937
Factor Arrows
109293

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, 19, 109, 293

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 19 x 109 x 293 = 19,417,696

This can also be written as 25 x 191 x 1091 x 2931 = 19,417,696

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


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