Prime numbers with hundreds of digits have been found, but there are still
more to come that haven't been found yet.
It's not possible to add up all the prime numbers, because nobody knows
what they all are yet.
Since there is no last Prime number (this was proved 2000 years ago by Euclid), the sum of all prime numbers is infinite.
The sum of the all prime numbers from 1 to 100 is 1,161
The sum of all the prime numbers less than 201 is 4,227.
The sum of all prime numbers between 10 and 16 is 41.
The sum is 1,060
The sum of all prime numbers less than 30 is 129.
The sum of the all prime numbers from 1 to 100 is 1,161
The sum of all prime numbers between 60 and 75 is 272
The sum of all prime numbers between 1 and 11 is 28.
The sum of all the prime numbers less than 201 is 4,227.
The sum of all prime numbers between 10 and 16 is 41.
There are not three prime numbers that have the sum of 3. The smallest prime number is 2. If all three prime numbers were 2, the sum would 2 + 2 + 2 = 6, so that is the smallest number that is the sum of three prime numbers.
11,13,19
I believe it would be 3, 11 and 29... all prime numbers that sum to 43.
2, 3, and 13 are all prime numbers and their sum is equal to 18.
The sum of all prime between numbers 1 and 400 (2 through 399) is 13,887.
The sum is 1,060
The sum of the first two prime numbers is 5.