Comment

Comment on And 299999999 is divisible by 13

TwilightKiddy@programming.dev ⁨11⁩ ⁨months⁩ ago

Well, on the side of easy ones there is “if the last digit is divisible by 2, whole number is divisible by 2”. Also works for 5. And if you take last 2 digits, it works for 4. And the legendary “if it ends with 0, it’s divisible by 10”.

source

Sort:hotnew top

darkpanda@lemmy.ca ⁨11⁩ ⁨months⁩ ago
There’s also the classic “no three positive integers a, b, and c to satisfy a**n + b**n = c**n for values of n greater than 2“ trick but my proof is to large to fit in this comment.

source
- JamesStallion@sh.itjust.works ⁨11⁩ ⁨months⁩ ago
  Fucking lol
  
  source
Scubus@sh.itjust.works ⁨11⁩ ⁨months⁩ ago
Its never divisible by zero, and its always divisible by one

source
- wicked@programming.dev ⁨11⁩ ⁨months⁩ ago
  Never say never. 1/0 = 0
  
  source
  - LordTrychon@startrek.website ⁨11⁩ ⁨months⁩ ago
    Interesting read. Thank you.
    
    source