Which is n/2(2a + (n - 1)d) where a is the first term, d is the difference between the terms and n is how many terms there are.
a = 31
d = 1
n = 29
29/2(62 + 28) = 29 x 45 = 1305
You can use the formula for an arithmetic series for this type of problem.
31 + 59 = 90
59 = 47 + 7 + 5, 59 = 41 + 13 + 5, 59 = 31 + 23 + 5, and there are more.
which three prime numbers have a sum of 59
They are: 31+37+41+43+47+53+59 = 311The sum of all prime numbers between 30 and 60 is 311.
There are infinitely many pairs of numbers that sum to 59. One such is 0.1 and 58.9
The sum of the prime numbers is: 31+37+41+43+47+53+59 = 311
31 37 41 43 47 53 59
17 + 19 + 23 = 59
13 + 17 + 29 = 59
31 + 37 + 41 + 43 + 47 + 53 + 59 + 61 + 67 = 439
They are: 31+37+41+43+47+53+59 = 311The sum of all prime numbers between 30 and 60 is 311.
5, 7, 47