Q: What are the prime factors of the number 198,480?

 A: 2, 3, 5, 827

Why are those the prime factors of the number 198,480?

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 198,480

198,480
Factor Arrows
299,240
Factor Arrows
249,620
Factor Arrows
224,810
Factor Arrows
212,405
Factor Arrows
34,135
Factor Arrows
5827

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, 827

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 827 = 198,480

This can also be written as 24 x 31 x 51 x 8271 = 198,480

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


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