themaninblack@lemmy.world to memes@lemmy.world · 2 days agoMath(s)lemmy.worldimagemessage-square42fedilinkarrow-up1572
arrow-up1572imageMath(s)lemmy.worldthemaninblack@lemmy.world to memes@lemmy.world · 2 days agomessage-square42fedilink
minus-squareSeeker of Carcosa@feddit.uklinkfedilinkEnglisharrow-up10·2 days agoDivisibility by 3 rule is real. If the sum of the digits of a number is divisible by 3, then the number itself is also divisible by 3. Same goes with 9. There’s an 11 rule, but it’s a bit convoluted.
minus-squareemmanuel_car@fedia.iolinkfedilinkarrow-up3·2 days agoThere’s also a rule 34, but it’s super advanced.
Divisibility by 3 rule is real. If the sum of the digits of a number is divisible by 3, then the number itself is also divisible by 3. Same goes with 9. There’s an 11 rule, but it’s a bit convoluted.
There’s also a rule 34, but it’s super advanced.