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ok so this is a little hard

umm... the 10th Prime number is

let's see:

1,2,3,5,7,11,13,17,19,23 <------ 23

And the 10th composite number is:

4,6,8,9,10,12,14,15,16,18<------- 18

SO 23 plus 18 ISSSSSS........... 41

So the sum of the 10th prime number and the 10th composite number is 41!!!

* * * * *

1 is neither prime nor composite. So the tenth prime is actually 29 and the sum is 47.

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14y ago

What else can I help you with?