Q: What are the prime factors of the number 11,526,864?

 A: 2, 3, 23, 53, 197

Why are those the prime factors of the number 11,526,864?

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 11,526,864

11,526,864
Factor Arrows
25,763,432
Factor Arrows
22,881,716
Factor Arrows
21,440,858
Factor Arrows
2720,429
Factor Arrows
3240,143
Factor Arrows
2310,441
Factor Arrows
53197

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, 23, 53, 197

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 23 x 53 x 197 = 11,526,864

This can also be written as 24 x 31 x 231 x 531 x 1971 = 11,526,864

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


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