4095
They are: 43+47 = 90
172
39 and 51
The numbers are 44 and 46.
The sum of the numbers from 1 through 100 is 5,050.
91
The prime numbers between 90 and 100 are 97. To find the sum of prime numbers between 90 and 100, you simply add 97 to get the total sum. Therefore, the sum of prime numbers between 90 and 100 is 97.
-20
They are: 43+47 = 90
172
The three composite numbers are 28, 30 and 32. Their sum is 90.
40 and 50
40 and 50
The sum is 73+79+83+89 = 324
the highest sum of the numbers is 17 and the lowest is 1. The only perfect squares in that range are 1,4,9, and 16. That means the following numbers will work: 10,13.18,22,27,31,36,40,45,54,63,72,79,81,88, and 90; that is 16 numbers
The numbers are -31, -30 and -29.
39 and 51