Q: What are the prime factors of the number 996,480?

 A: 2, 3, 5, 173

Why are those the prime factors of the number 996,480?

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 996,480

996,480
Factor Arrows
2498,240
Factor Arrows
2249,120
Factor Arrows
2124,560
Factor Arrows
262,280
Factor Arrows
231,140
Factor Arrows
215,570
Factor Arrows
27,785
Factor Arrows
32,595
Factor Arrows
3865
Factor Arrows
5173

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, 5, 173

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 3 x 3 x 5 x 173 = 996,480

This can also be written as 27 x 32 x 51 x 1731 = 996,480

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


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