21^3 * 21^2 * 34^7 *46^8 * 77^8

• 1*1*4*6*1=24
  ans=4
• 11 years agoHelpfull: Yes(16) No(0)
• First of all if we will multiply
  1*1*1*1*1..... till n times then we will get 1 as unit term
  
  now if i will multiply
  4*4*4*4......till 7 times then we will get 4 as unit term
  
  now as you know the unit term of 6 is always 6 and it doesn't matter how many
  times you are multiplying
  
  now if i will multiply
  7*7*7*7......till 8 times we will get 1 as unit term
  
  so we get 1*1*4*6*1 = 24
  therefore the unit term is 4
• 11 years agoHelpfull: Yes(10) No(2)
• ans 6
  1*1*6*6*1=36
• 11 years agoHelpfull: Yes(4) No(12)
• 1*1*4*1*1=4
  so,required answer is "4"
• 11 years agoHelpfull: Yes(3) No(3)
• 1*1*4*6*1
  Unit digit 4
• 11 years agoHelpfull: Yes(2) No(0)
• 8 1+64+1+1+1
• 11 years agoHelpfull: Yes(0) No(1)
• 1^3*1^2*4^7*6^8*7^8=1*1*4*1*1=4
  ans=4
• 11 years agoHelpfull: Yes(0) No(0)