Q: What are the prime factors of the number 998,336?

 A: 2, 19, 821

Why are those the prime factors of the number 998,336?

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 998,336

998,336
Factor Arrows
2499,168
Factor Arrows
2249,584
Factor Arrows
2124,792
Factor Arrows
262,396
Factor Arrows
231,198
Factor Arrows
215,599
Factor Arrows
19821

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, 821

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 19 x 821 = 998,336

This can also be written as 26 x 191 x 8211 = 998,336

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


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