1227.
It is: 190+119 = 309
190
The sum of the first 20 integers is 190.
517
1 + 2 + 11 + 22 + 47 + 94 + 517 + 1034 = 1,728
The sum of 101 and 89 is 190.
if you use the formula Sn= n/2(a1+an) you can find the answer. Plug it in like this S190= 190/2(1+190) which comes out to be 18145
517
517, 1034, 1551, etc. (numbers that are multiples of 517) can be divided by 517.
The positive integer factors of 517 are: 1, 11, 47, 517
517