Q: What are the prime factors of the number 11,113,088?

 A: 2, 7, 79, 157

Why are those the prime factors of the number 11,113,088?

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 11,113,088

11,113,088
Factor Arrows
25,556,544
Factor Arrows
22,778,272
Factor Arrows
21,389,136
Factor Arrows
2694,568
Factor Arrows
2347,284
Factor Arrows
2173,642
Factor Arrows
286,821
Factor Arrows
712,403
Factor Arrows
79157

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, 79, 157

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 7 x 79 x 157 = 11,113,088

This can also be written as 27 x 71 x 791 x 1571 = 11,113,088

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


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