How about: 23+3 = 26 as one example
They are: 23+3 = 26
13, 17, and 13. 13+13 = 26 + 17 = 43
Although negative numbers aren't usually considered factors, you can use -21, -3 and -2.
Add all the numbers up. Divide the answer you get by the amount of numbers there are. Viola! You have the average! E.g. Average of: 7, 3, 4, 6, 6. 7+3+4+6+6 = 26 26 divided by 5 (because that's how many numbers there are) = 5.2 5.2 is your average :)
83, 3,and 2 are prime numbers which add up to 88.
2 numbers that add up to 8
103
There are no two prime numbers that add up to be 152.
No three odd numbers can add up to an even number.
3332, 3333 and 3334 add up to 9999 - there are no three consecutive numbers that add up to 10,000.
39