Q: What are the prime factors of the number 998,272?

 A: 2, 11, 709

Why are those the prime factors of the number 998,272?

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 998,272

998,272
Factor Arrows
2499,136
Factor Arrows
2249,568
Factor Arrows
2124,784
Factor Arrows
262,392
Factor Arrows
231,196
Factor Arrows
215,598
Factor Arrows
27,799
Factor Arrows
11709

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, 11, 709

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 11 x 709 = 998,272

This can also be written as 27 x 111 x 7091 = 998,272

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


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