Q: What are the prime factors of the number 18,415,296?

 A: 2, 3, 10657

Why are those the prime factors of the number 18,415,296?

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 18,415,296

18,415,296
Factor Arrows
29,207,648
Factor Arrows
24,603,824
Factor Arrows
22,301,912
Factor Arrows
21,150,956
Factor Arrows
2575,478
Factor Arrows
2287,739
Factor Arrows
395,913
Factor Arrows
331,971
Factor Arrows
310,657

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, 10657

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 3 x 3 x 3 x 10,657 = 18,415,296

This can also be written as 26 x 33 x 10,6571 = 18,415,296

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


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