A square shape, you mean? E.g. 236,985 is not divisible by 11.
-
-
-
Rectangles work too, but you need to use only their vertices, so it's always 4 numbers; your example would work if you consider 2398.
- 3 more replies
New conversation -
-
-
-
That kid looks like he discovered that all by himself --- which is the way I felt when I did it in 1973 on my first LED display calculator. But I used 5-9-0-0-9.
End of conversation
New conversation -
-
-
Square not rectangle. But yeah, that’s awesome.
New conversation -
-
-
Before calculators were invented this was done on fingers. And before fingers were invented, cilia worked just fine.pic.twitter.com/ePWOj7YWlj
-
And before cilia, mitochondrial cells with some basic representations of information worked just fine.
End of conversation
New conversation -
-
-
It's 1254 that is though. And so is 2541 etc
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
If you use 6 digits in this fashion, those numbers are divisible by 111. If you use all 8, those are divisible by 1111, and sum of the digits is always 40, so then differences of such numbers are divisible by 9999.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.