Q: What are the prime factors of the number 48,960?

 A: 2, 3, 5, 17

Why are those the prime factors of the number 48,960?

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 48,960

48,960
Factor Arrows
224,480
Factor Arrows
212,240
Factor Arrows
26,120
Factor Arrows
23,060
Factor Arrows
21,530
Factor Arrows
2765
Factor Arrows
3255
Factor Arrows
385
Factor Arrows
517

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, 17

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 3 x 3 x 5 x 17 = 48,960

This can also be written as 26 x 32 x 51 x 171 = 48,960

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


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