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if you mean what three prime numbers add up to a prime number then the answer is : 5 + 7 + 11 = 23
10+11+12
The numbers are 11, 13 and 15.
There is an infinite number of ways three numbers can have the sum of 11
They are 11, 12 and 13.
Add the numbers together, and then - since there are three numbers - divide the result by 3.
There are not any numbers from 11 through 19 that are multiples of 10.
2+5+11= 18.
None add up to 30; you would need at least three 6-sided die with numbers 6-11 to add to 30.
10, 11, and 12 are the only ones.
5 + 7 + 11 = 23
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