Q: What are the prime factors of the number 996,408?

 A: 2, 3, 7, 659

Why are those the prime factors of the number 996,408?

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 996,408

996,408
Factor Arrows
2498,204
Factor Arrows
2249,102
Factor Arrows
2124,551
Factor Arrows
341,517
Factor Arrows
313,839
Factor Arrows
34,613
Factor Arrows
7659

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, 7, 659

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 7 x 659 = 996,408

This can also be written as 23 x 33 x 71 x 6591 = 996,408

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


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