Q: What are the prime factors of the number 10,730,144?

 A: 2, 23, 61, 239

Why are those the prime factors of the number 10,730,144?

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 10,730,144

10,730,144
Factor Arrows
25,365,072
Factor Arrows
22,682,536
Factor Arrows
21,341,268
Factor Arrows
2670,634
Factor Arrows
2335,317
Factor Arrows
2314,579
Factor Arrows
61239

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, 23, 61, 239

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 23 x 61 x 239 = 10,730,144

This can also be written as 25 x 231 x 611 x 2391 = 10,730,144

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


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