Q: What are the prime factors of the number 11,908,144?

 A: 2, 79, 9421

Why are those the prime factors of the number 11,908,144?

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 11,908,144

11,908,144
Factor Arrows
25,954,072
Factor Arrows
22,977,036
Factor Arrows
21,488,518
Factor Arrows
2744,259
Factor Arrows
799,421

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, 79, 9421

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 79 x 9,421 = 11,908,144

This can also be written as 24 x 791 x 9,4211 = 11,908,144

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


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