Q: What are the prime factors of the number 12,047,552?

 A: 2, 11, 109, 157

Why are those the prime factors of the number 12,047,552?

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 12,047,552

12,047,552
Factor Arrows
26,023,776
Factor Arrows
23,011,888
Factor Arrows
21,505,944
Factor Arrows
2752,972
Factor Arrows
2376,486
Factor Arrows
2188,243
Factor Arrows
1117,113
Factor Arrows
109157

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, 11, 109, 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 11 x 109 x 157 = 12,047,552

This can also be written as 26 x 111 x 1091 x 1571 = 12,047,552

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


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