The whole point of a vector is that it has a magnitude and a direction. There are no directions given in the above string of numbers.
When you add 8 and 5 the sum will be 13. On the other hand when you add 6 and 7 the sum will be 13. That's why it's equal to 13.
6 + 7 = 13(Sum means add)
30/5=613-7=6=> (13-7)*5 = 30
19
5 + 7 + 11 + 13 + 17 = 53
The sum, meaning you add them together. 7+5=13.
When you add 8 and 5 the sum will be 13. On the other hand when you add 6 and 7 the sum will be 13. That's why it's equal to 13.
455
20
6 + 7 = 13(Sum means add)
13 and 5 11 and 7
13 + 23 = 36 5 + 7 + 11 + 13 = 36 2 + 3 + 7 + 11 + 13 = 36 5 + 31 = 36
Sum of first 7 prime numbers is equal to 2+3+5+7+11+13+17 = 58.
The sum of 7 & 13 = 7 + 13 = 20
30/5=613-7=6=> (13-7)*5 = 30
19
5 + 7 + 11 + 13 + 17 = 53