Its never divisible by zero, and its always divisible by one
Comment on And 299999999 is divisible by 13
TwilightKiddy@programming.dev 1 month agoWell, 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”.
Scubus@sh.itjust.works 1 month ago
wicked@programming.dev 1 month ago
LordTrychon@startrek.website 1 month ago
Interesting read. Thank you.
darkpanda@lemmy.ca 1 month 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.
JamesStallion@sh.itjust.works 1 month ago
Fucking lol