Q: What are the prime factors of the number 17,195,409?

 A: 3, 7, 11, 919

Why are those the prime factors of the number 17,195,409?

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 17,195,409

17,195,409
Factor Arrows
35,731,803
Factor Arrows
31,910,601
Factor Arrows
3636,867
Factor Arrows
3212,289
Factor Arrows
370,763
Factor Arrows
710,109
Factor Arrows
11919

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:

3, 7, 11, 919

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 7 x 11 x 919 = 17,195,409

This can also be written as 35 x 71 x 111 x 9191 = 17,195,409

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


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