An interesting observation adding three consecutive numbers starting from 123

[Fenixgoon]

You should try it in a non-base-10 system and see how things change

 

[Fenixgoon]

Well it's important to eat 9. Why do you think we are supposed to eat 3 squared meals a day?

Astounding pun game. You win the internets for today

 

[nakedfrog]

Divide by zero should be the number itself. Subtract the number from itself zero times means no subtraction so number remains unchanged. Simply means that division DIDN'T happen!

Except... that's not what division is? What you've just described is dividing by 1.

 

[dullard]

Well it's important to eat 9. Why do you think we are supposed to eat 3 squared meals a day?

Three squared meals are integral to life. How else would ordinal people get such great figures?

 

[sdifox]

If you eat some honey, the numbers no longer work.

 

[igor_kavinski]

If you eat some honey, the numbers no longer work.

Maybe I need to do a honey fast to figure out the reverse number algorithm...

Maybe during my next annual vacation.

 

[Fritzo]

They all reduce to six!

123=1+2+3=6
456=4+5+6=15=1+5=6
789=7+8+9=24=2+4=6
10 11 12=33=6
13 14 15=42=6
16 17 18=51=6
19 20 21=60=6

Any math geek here to tell us what this phenomenon is called in number theory?

Is there a practical application for it?

22+23+24 = 69

Nice.