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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.
103
2 numbers that add up to 8
No three odd numbers can add up to an even number.
83, 3,and 2 are prime numbers which add up to 88.
There are no two prime numbers that add up to be 152.
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 :)
3332, 3333 and 3334 add up to 9999 - there are no three consecutive numbers that add up to 10,000.
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