Q: What are the prime factors of the number 11,706,480?

 A: 2, 3, 5, 71, 229

Why are those the prime factors of the number 11,706,480?

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 11,706,480

11,706,480
Factor Arrows
25,853,240
Factor Arrows
22,926,620
Factor Arrows
21,463,310
Factor Arrows
2731,655
Factor Arrows
3243,885
Factor Arrows
381,295
Factor Arrows
516,259
Factor Arrows
71229

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, 71, 229

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 5 x 71 x 229 = 11,706,480

This can also be written as 24 x 32 x 51 x 711 x 2291 = 11,706,480

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


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