Q: What are the prime factors of the number 237,120?

 A: 2, 3, 5, 13, 19

Why are those the prime factors of the number 237,120?

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 237,120

237,120
Factor Arrows
2118,560
Factor Arrows
259,280
Factor Arrows
229,640
Factor Arrows
214,820
Factor Arrows
27,410
Factor Arrows
23,705
Factor Arrows
31,235
Factor Arrows
5247
Factor Arrows
1319

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, 13, 19

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 5 x 13 x 19 = 237,120

This can also be written as 26 x 31 x 51 x 131 x 191 = 237,120

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


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