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Sandy Wood
Brain Game: Let’s Get Digital
by Sandy Wood - October 29, 2008 - 6:30 AM

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Here’s a number as it might appear on an LCD readout, but the last digit is missing. What IS the final digit in this number? And why?

HERE is the solution.

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Comments (9)

  1. HA…well played sir…I felt dumb after thinking about it for a little bit.

    posted by Ben W. on 10-29-2008 at 8:25 am

  2. On the other hand, way down in the expansion of pi:

    … 17459 00159

    Cheer up, it had to happen.

    posted by Mike Jackson on 10-29-2008 at 8:44 am

  3. Finally! I figured this one out easily and I haven’t had coffee yet! A lifetime of insomnia and staring at the alarm clock has finally come in handy!

    posted by Rachel on 10-29-2008 at 8:45 am

  4. The next number is 8 because it has 7 little bars….the previous ones have 6, 4 3 2etc in reverse order.

    posted by Sandie on 10-29-2008 at 9:06 am

  5. I thought the dash at the beginning was the missing number so I thought of 3, because upside down it would have spelled the name Ashlie.

    posted by Antanas on 10-29-2008 at 10:09 am

  6. The missing number is 8.

    posted by Sue on 10-29-2008 at 10:38 am

  7. Sorry – Starting from the dash on the left each of the numbers is made of of one more bar than the number before it.
    The dash is one bar, 1 is two bars, 7 is three bars, etc.

    posted by Sue on 10-29-2008 at 10:41 am

  8. ¡god¡, i’m in my break time in the office and felt so embarrassedly fool…

    posted by luis Alberto on 10-29-2008 at 4:12 pm

  9. lol. i figured 8, but only because i thought that the other numbers turned at 180 degrees could be seen as letters

    posted by Steven on 7-1-2009 at 9:05 am

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