text: # I am a prime number. Double of myself is equal to the square if myself. Which number am I ?
  
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  I am a prime number. Double of myself is equal to the square if myself. Which number am I ?
  posted Mar 2, 2018
  
  2X = X^2
  X^2 - 2X = 0
  X(X - 2)=0
  X = 0, 2
  So the answer is 2 (because its a prime) and not 0.
  
  answer Mar 2, 2018
  +1 vote
  
  2 is also prime number
  when, we double this is equal to 4
  if, we square its is equal to 4
  so, required answer is 2
  
  answer Mar 3, 2018
  +1 vote
  
  answe----------------- two
  
  answer Mar 8, 2018
  
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