Q: What are the prime factors of the number 12,433,018?

 A: 2, 13, 17, 23, 1223

Why are those the prime factors of the number 12,433,018?

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 12,433,018

12,433,018
Factor Arrows
26,216,509
Factor Arrows
13478,193
Factor Arrows
1728,129
Factor Arrows
231,223

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, 13, 17, 23, 1223

We can check our work by multiplying all of the prime factors together: 2 x 13 x 17 x 23 x 1,223 = 12,433,018

This can also be written as 21 x 131 x 171 x 231 x 1,2231 = 12,433,018

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


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