themaninblack@lemmy.world to memes@lemmy.world · 2 days agoMath(s)lemmy.worldimagemessage-square42fedilinkarrow-up1569arrow-down128
arrow-up1541arrow-down1imageMath(s)lemmy.worldthemaninblack@lemmy.world to memes@lemmy.world · 2 days agomessage-square42fedilink
minus-squarePrime_Minister_Keyes@lemm.eelinkfedilinkarrow-up23·2 days agoWell, on the surface, it’s just 60-3, so clearly divisible by 3 itself. Now 221, that’s some fuckery.
minus-squareAlenalda@lemmy.worldlinkfedilinkarrow-up4·12 hours agoWhen I was young I learned that when you add up all the numbers if that number is a multiple of 3 than the original number is also divisible by 3. So 51, 5+1=6 and 6 divisible by 3 and so must 51.
minus-squarelennivelkantlinkfedilinkarrow-up2·16 hours agoDammit, it was right in the post, why did that take me so long?
Well, on the surface, it’s just 60-3, so clearly divisible by 3 itself. Now 221, that’s some fuckery.
When I was young I learned that when you add up all the numbers if that number is a multiple of 3 than the original number is also divisible by 3. So 51, 5+1=6 and 6 divisible by 3 and so must 51.
Dammit, it was right in the post, why did that take me so long?