Q: What are the prime factors of the number 17,316,992?

 A: 2, 7, 11, 251

Why are those the prime factors of the number 17,316,992?

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 17,316,992

17,316,992
Factor Arrows
28,658,496
Factor Arrows
24,329,248
Factor Arrows
22,164,624
Factor Arrows
21,082,312
Factor Arrows
2541,156
Factor Arrows
2270,578
Factor Arrows
2135,289
Factor Arrows
719,327
Factor Arrows
72,761
Factor Arrows
11251

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, 7, 11, 251

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 2 x 7 x 7 x 11 x 251 = 17,316,992

This can also be written as 27 x 72 x 111 x 2511 = 17,316,992

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


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