Wednesday, June 02, 2010

What's the next number in the sequence (and why)?

11 1,331 161,051 19,487,171 ?


  1. 2,357,947,691

    You multiply each number by 121.

  2. Oh, haha. I didn't even see that that was how you were supposed to read the numbers. You should have made it a list instead of straight across. :/

    I thought the comma was a new number in the sequence

  3. The next number is 2,357,947,691. The sequence is displaying the odd powers of 11, so:

    11^1 = 11
    11^3 = 1131
    11^5 = 161051
    11^7 = 19487171
    11^9 = 2357947691


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