Q: What are the prime factors of the number 15,245,152?

 A: 2, 13, 2819

Why are those the prime factors of the number 15,245,152?

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 15,245,152

15,245,152
Factor Arrows
27,622,576
Factor Arrows
23,811,288
Factor Arrows
21,905,644
Factor Arrows
2952,822
Factor Arrows
2476,411
Factor Arrows
1336,647
Factor Arrows
132,819

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, 2819

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 13 x 13 x 2,819 = 15,245,152

This can also be written as 25 x 132 x 2,8191 = 15,245,152

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


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