Q: What are the prime factors of the number 11,527,168?

 A: 2, 11257

Why are those the prime factors of the number 11,527,168?

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 11,527,168

11,527,168
Factor Arrows
25,763,584
Factor Arrows
22,881,792
Factor Arrows
21,440,896
Factor Arrows
2720,448
Factor Arrows
2360,224
Factor Arrows
2180,112
Factor Arrows
290,056
Factor Arrows
245,028
Factor Arrows
222,514
Factor Arrows
211,257

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, 11257

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 2 x 2 x 11,257 = 11,527,168

This can also be written as 210 x 11,2571 = 11,527,168

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


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