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For each if the following sequence give the next two terms 

  1. 2,3,5,7,11..
  2. 1,4,2,16,64,4
  3. 1/1,2/2,4/3,7/4,11/5...
  4. 1,1,2,4,3,9,4

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  1. Sequence: 2, 3, 5, 7, 11, ...
    This appears to be a sequence of prime numbers.
    Next two terms: 13, 17
  2. Sequence: 1, 4, 2, 16, 64, 4, .
    It seems like this sequence alternates between squaring and taking the square root of the previous term.
    Next two terms: 256, 16
  3. Sequence: 1/1, 2/2, 4/3, 7/4, 11/5, ...
    The numerator appears to be increasing by 1 each time, and the denominator is increasing by 1 as well.
    Next two terms: 16/6, 22/7
  4. Sequence: 1, 1, 2, 4, 3, 9, 4, ...
    This sequence seems to alternate between squaring and adding 1 to the previous term.
    Next two terms: 16, 5

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1.15,19
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