47+53
The sum of the all prime numbers from 1 to 100 is 1,161
2+11+13
The sum is 1,060
420
6
There are two pairs of prime numbers that express 18 as the sum of two prime numbers: 7 + 11 = 18 and 5 + 13 = 18.
The sum of the all prime numbers from 1 to 100 is 1,161
The sum of the first 100 prime numbers is 24,133
The sum of prime numbers between 90 and 100 is 97, the only prime number between 90 and 100.
7+3
1060
13 + 17 = 30
3 + 17 = 20
2+11+13
The sum is 1,060
47 and 53
420