Q: What are the prime factors of the number 14,415,456?

 A: 2, 3, 11, 17, 73

Why are those the prime factors of the number 14,415,456?

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 14,415,456

14,415,456
Factor Arrows
27,207,728
Factor Arrows
23,603,864
Factor Arrows
21,801,932
Factor Arrows
2900,966
Factor Arrows
2450,483
Factor Arrows
3150,161
Factor Arrows
1113,651
Factor Arrows
111,241
Factor Arrows
1773

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, 11, 17, 73

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 11 x 11 x 17 x 73 = 14,415,456

This can also be written as 25 x 31 x 112 x 171 x 731 = 14,415,456

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


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