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what is the next number in this sequence

what is the next number in this sequence - 16 August
what is the next number in this sequence

Find the next number in the sequence

1, 2, 6, 21, 88, __?


For Solution : Click Here

18 comments:

  1. This comment has been removed by the author.

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  2. 445. series is like this:

    first number is 1
    1*1+1=2 (prev number*counter+counter)
    2*2+2=6
    6*3+3=21
    21*4+4=88
    88*5+5=445

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    Replies
    1. Right thats a clear way to say it
      my answer is 445!

      Delete
  3. Replies
    1. why post same thing multiple time...

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  4. 1*1 + 1=2
    2*2 + 2=6
    6*3 + 3=21
    21*4 + 4=88
    88*5 + 5=445

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    Replies
    1. @prabakar sir...i think that this might take some time to find out the way..

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  5. another solution:

    1*(1+1)=2
    2*(2+1)=6
    3*(6+1)=21
    4*(21+1)=88
    5*(88+1)=445

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    Replies
    1. i too thinked like in this way ..but we need to many more solutions in shortest duration sir

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  6. Answer is 445. 1,2,6,21,88,445
    =1(it is the first number)
    =2((1+1)*1)
    =6((2+1)*2)
    =21((6+1)*3)
    =88((21+1)*4)
    =445((88+1)*5)

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