Q: What are the prime factors of the number 15,233,427?

 A: 3, 11, 41, 139

Why are those the prime factors of the number 15,233,427?

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 15,233,427

15,233,427
Factor Arrows
35,077,809
Factor Arrows
31,692,603
Factor Arrows
3564,201
Factor Arrows
3188,067
Factor Arrows
362,689
Factor Arrows
115,699
Factor Arrows
41139

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:

3, 11, 41, 139

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 11 x 41 x 139 = 15,233,427

This can also be written as 35 x 111 x 411 x 1391 = 15,233,427

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


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