Q: What are the prime factors of the number 18,203,592?

 A: 2, 3, 11, 53, 1301

Why are those the prime factors of the number 18,203,592?

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 18,203,592

18,203,592
Factor Arrows
29,101,796
Factor Arrows
24,550,898
Factor Arrows
22,275,449
Factor Arrows
3758,483
Factor Arrows
1168,953
Factor Arrows
531,301

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, 53, 1301

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 11 x 53 x 1,301 = 18,203,592

This can also be written as 23 x 31 x 111 x 531 x 1,3011 = 18,203,592

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


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