Q: What are the prime factors of the number 11,130,112?

 A: 2, 7, 6211

Why are those the prime factors of the number 11,130,112?

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 11,130,112

11,130,112
Factor Arrows
25,565,056
Factor Arrows
22,782,528
Factor Arrows
21,391,264
Factor Arrows
2695,632
Factor Arrows
2347,816
Factor Arrows
2173,908
Factor Arrows
286,954
Factor Arrows
243,477
Factor Arrows
76,211

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, 7, 6211

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 7 x 6,211 = 11,130,112

This can also be written as 28 x 71 x 6,2111 = 11,130,112

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


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