Q: What are the prime factors of the number 15,503,700?

 A: 2, 3, 5, 51679

Why are those the prime factors of the number 15,503,700?

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 15,503,700

15,503,700
Factor Arrows
27,751,850
Factor Arrows
23,875,925
Factor Arrows
31,291,975
Factor Arrows
5258,395
Factor Arrows
551,679

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, 5, 51679

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 5 x 51,679 = 15,503,700

This can also be written as 22 x 31 x 52 x 51,6791 = 15,503,700

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


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