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## What's Next?

Series teasers are where you try to complete the sequence of a series of letters, numbers or objects.

 Fun: (2.83) Difficulty: (2.97) Category: Series Submitted By: chidam11

What is the next number in the following series?

123, 354, 897, 1875, 10626, ?

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 Posted by chidam11 on May 03, 2006 Hello there, how did you like my first series teaser? Posted by blablabla on May 04, 2006 i never woulda thought of that!!! Posted by chidam11 on May 05, 2006 I though it was simple. Posted by brainster on May 07, 2006 Nice! Different from the usual fare of series teasers! Posted by chidam11 on May 07, 2006 Thank You very much for your comment Brainster. Posted by blagh on May 12, 2006 easy but cute Posted by builder on Aug 01, 2009 weird process to get to achieve the progression but still pretty easy. Hardest part was believing that was all there was to it Posted by builder on Aug 01, 2009 weird process to get to achieve the progression but still pretty easy. Hardest part was believing that was all there was to it chidam11 Posted by on Aug 01, 2009 There is more than one pattern/answer on this one. You can also take away the numbers left of the 2nd to last number and place those numbers at the end and add to the previous.Thus my answer is 36732 Posted by UptheHill on Aug 01, 2009 TOO EARLY... NEED MORE COFFEE!!! Posted by blackwolfe on Aug 01, 2009 Very easy but entertaining. But I need to point out that actually, if you follow the instructions in the answer exactly, the conversion of the 4th number in the series would be 1758, making the 5th number 3633. Its conversion would be 3336, which would make the final number 6969. The first line of the instructions in the answer should read, "The next number in the series is 16887. Take the first number and move that number to the units place, then shift all other numbers left accordingly." You might want to show how this works with the number 1875 in your example to avoid confusion. Posted by dalfamnest on Aug 01, 2009 I did it by adding 1st 2 digits to get the first digit in the next number; the 2nd 2 digits for the 2nd, etc... until the last with the first to get the final digit. If the sum of a pair is > 10, add the '1' to the earlier digit! I think people who say this is 'easy' were probably lucky stumbling onto the method quickly ... or they've done similar. Took me a few minutes of perseverance - it was 'fun' enough to keep going. Thanks. Posted by craniac on Aug 01, 2009 Can't believe I got it so quickly and eassily, my math puzzle skills are so old and lame. Thanks for a fun puzzle. Posted by elentir on Aug 03, 2009 @dalfamnest I tried your method too, but it breaks when you try to get from 897 to 1875 and 1875 to 10626. Posted by dsjt on Aug 03, 2009 elentir, I used the same method as dalfamnest. It does work. 1875 1+8=9 8+7=15 7+5=12 5+1=6 9 + 15 + 12 + 6 ====== 10626 Posted by dsjt on Aug 03, 2009 elentir I was afraid that the characters would not line up properly. But the 9 should have been over the 1 in 15. the 12 should have started under the 5 in 15. the six should have been to the right of the 12. Padding with zeros it should look more like. 09 015 0012 00006 ===== 10626 Posted by elentir on Aug 04, 2009 Ahh, I see it now. Thanks for the illustration!