The sum of any two prime numbers may or may not be prime. The sum of the two prime numbers 2 and 3 is the prime number 5, and the sum of the two prime numbers 5 and 7 is the composite number 12.
2, 7 AND 31
The sum of the first six prime numbers is 41 (2 + 3 + 5 + 7 + 11 + 13 = 41).
17 is the only prime number that is the sum of four consecutive prime numbers. 2 + 3 + 5 + 7 = 17
The smallest four prime numbers are 2, 3, 5, 7, and their sum happens to be a prime.
Sum of first 7 prime numbers is equal to 2+3+5+7+11+13+17 = 58.
The sum of any two prime numbers may or may not be prime. The sum of the two prime numbers 2 and 3 is the prime number 5, and the sum of the two prime numbers 5 and 7 is the composite number 12.
7 + 3
2 + 2 + 3 = 7
The first five prime numbers are 2,3,5,7,11. The sum of the first five prime numbers is 28.The sum is: 2+3+5+7+11 = 28
2, 7 AND 31
7 and 2
2 and 5
The first five prime numbers are 2, 3, 5, 7, 11. The sum of these five numbers is 28.
5 = 2+3 = 7-2
The only two prime numbers for which this can be the case are 2 and 5 - since one of the prime numbers has to be even.
The sum of the first six prime numbers is 41 (2 + 3 + 5 + 7 + 11 + 13 = 41).