Gollum@feddit.org to Science Memes@mander.xyzEnglish · edit-221 hours ago10!=10\*9\*8\*7\*6\*5\*4\*3\*2\*1feddit.orgimagemessage-square27linkfedilinkarrow-up1367arrow-down110
arrow-up1357arrow-down1image10!=10\*9\*8\*7\*6\*5\*4\*3\*2\*1feddit.orgGollum@feddit.org to Science Memes@mander.xyzEnglish · edit-221 hours agomessage-square27linkfedilink
minus-squareNeatNit@discuss.tchncs.delinkfedilinkEnglisharrow-up79·19 hours agoFine, I’ll do the math: 60 seconds in a minute (10 × 6) 60 minutes in an hour (9 × 5 × 4 / 3) 24 hours in a day (8 × 3) 7 days in a week (7) 6 weeks (3 × 2) The bold 3’s cancel out and become × 1, and then it’s easy to see each integer from 1 to 10 appears exactly once when it’s all multiplied together.
minus-squareXavienth@lemmygrad.mllinkfedilinkEnglisharrow-up2·15 hours agoMuch easier to start if you know there are 3600 seconds in an hour. 36 is 9×4 and 100 is 10×5×2. Then 24 hours is 8×3, and 6 weeks gives you 6×7 (hand gesture).
Fine, I’ll do the math:
60 seconds in a minute (10 × 6)
60 minutes in an hour (9 × 5 × 4 / 3)
24 hours in a day (8 × 3)
7 days in a week (7)
6 weeks (3 × 2)
The bold 3’s cancel out and become × 1, and then it’s easy to see each integer from 1 to 10 appears exactly once when it’s all multiplied together.
Much easier to start if you know there are 3600 seconds in an hour. 36 is 9×4 and 100 is 10×5×2. Then 24 hours is 8×3, and 6 weeks gives you 6×7 (hand gesture).