Q: What are the prime factors of the number 130,272?

 A: 2, 3, 23, 59

Why are those the prime factors of the number 130,272?

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 130,272

130,272
Factor Arrows
265,136
Factor Arrows
232,568
Factor Arrows
216,284
Factor Arrows
28,142
Factor Arrows
24,071
Factor Arrows
31,357
Factor Arrows
2359

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, 23, 59

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 23 x 59 = 130,272

This can also be written as 25 x 31 x 231 x 591 = 130,272

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


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