Q: What are the prime factors of the number 300,120?

 A: 2, 3, 5, 41, 61

Why are those the prime factors of the number 300,120?

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 300,120

300,120
Factor Arrows
2150,060
Factor Arrows
275,030
Factor Arrows
237,515
Factor Arrows
312,505
Factor Arrows
52,501
Factor Arrows
4161

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, 41, 61

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 41 x 61 = 300,120

This can also be written as 23 x 31 x 51 x 411 x 611 = 300,120

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


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