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 Number Series (Posted on 2004-02-14)
Find the next number in the following series:

11, 12, 20, 23, 33, 46, ?, ?

 Submitted by Ravi Raja Rating: 3.0000 (3 votes) Solution: (Hide) All the numbers given are the fibonacci numbers in increasing bases starting 2 !!! Therefore, 11 = 3 base 2 12 = 5 base 3 20 = 8 base 4 23 = 13 base5 etc ... So, the next number is 67 which is 55 base 8. (Fibonacci series : 2, 3, 5, 8, 13, 21, 34, 55, 89..... where next number is sum of the previous to numbers.)

 Subject Author Date No Subject kevin 2005-10-29 20:13:58 Oops Larry 2004-03-03 23:35:44 Solution Larry 2004-03-03 23:19:54 re(3): No Subject ===> better, best etc att : Gamer Gamer 2004-03-02 19:04:34 re(2): No Subject ===> better, best etc att : Gamer Ady TZIDON 2004-02-29 17:59:04 re: No Subject Gamer 2004-02-29 14:55:32 re: No Subject Fomomo 2004-02-21 14:43:30 No Subject Ady TZIDON 2004-02-18 11:27:55 link Richard 2004-02-14 23:19:40 Based on a Fib Haiosu 2004-02-14 17:03:18 I'm pretty sure this won't be the official solution :-) Penny 2004-02-14 15:00:45

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