Q: What are the prime factors of the number 789,984?

 A: 2, 3, 13, 211

Why are those the prime factors of the number 789,984?

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 789,984

789,984
Factor Arrows
2394,992
Factor Arrows
2197,496
Factor Arrows
298,748
Factor Arrows
249,374
Factor Arrows
224,687
Factor Arrows
38,229
Factor Arrows
32,743
Factor Arrows
13211

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, 3, 13, 211

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 13 x 211 = 789,984

This can also be written as 25 x 32 x 131 x 2111 = 789,984

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


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