4,25,121,289,?

• Prime numbers- 2,3,5,7,11,13,17,19,23.....
  Series - 2^2,5^2,11^2,17^2,23^2
  Series- 4, 25, 121, 289, 529.
  So next term in series is- 529.
• 10 years agoHelpfull: Yes(6) No(0)
• 529
  
  4 = 2^2
  25 = 5^2
  121 = 11^2
  289 = 17^2
  
  So the next number is 23^2 (Square of alternate prime numbers)
  23^2 = 529
  
• 10 years agoHelpfull: Yes(3) No(3)
• 2209 is the answer
  since 2^2=4
  5^2=25
  11^2=121
  23^2=289
  47^2=2209
  so here the difference is 3,6,12,24 between the numbers whose square has to be calculated.
• 10 years agoHelpfull: Yes(0) No(4)
• the given numbers are the squares of 2,5,11,17,...
  so let us take the difference between the consecutive numbers then we get
  (5-2),(11-5),(17-11),...
  3,6,6,...
  so the possible chance is to add 3 to the next number.
  ie. (17+3=20) so the next number will be the square of 20.
  ie. 20^2=400
  so the sequence is 4,25,121,289,400....
• 10 years agoHelpfull: Yes(0) No(3)
• i have mistaken
• 10 years agoHelpfull: Yes(0) No(2)
• 9*1/8, 9*2/8, 9*3/8, 9*4/8,( 9*5/8)
• 8 years agoHelpfull: Yes(0) No(0)