Q: What are the prime factors of the number 10,940,072?

 A: 2, 11, 13, 73, 131

Why are those the prime factors of the number 10,940,072?

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 10,940,072

10,940,072
Factor Arrows
25,470,036
Factor Arrows
22,735,018
Factor Arrows
21,367,509
Factor Arrows
11124,319
Factor Arrows
139,563
Factor Arrows
73131

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, 11, 13, 73, 131

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 11 x 13 x 73 x 131 = 10,940,072

This can also be written as 23 x 111 x 131 x 731 x 1311 = 10,940,072

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


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