Q: What are the prime factors of the number 18,180,008?

 A: 2, 7, 11, 2683

Why are those the prime factors of the number 18,180,008?

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 18,180,008

18,180,008
Factor Arrows
29,090,004
Factor Arrows
24,545,002
Factor Arrows
22,272,501
Factor Arrows
7324,643
Factor Arrows
1129,513
Factor Arrows
112,683

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, 7, 11, 2683

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 11 x 11 x 2,683 = 18,180,008

This can also be written as 23 x 71 x 112 x 2,6831 = 18,180,008

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


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