The unit digit of expression
23^2*565^4*91^4 ?

• take units digit in the expression in 23 units digit is 3 then see 3^2 u'll get 9 and in 565 units digit is 5 see 5^4 u'll get units digit 5 and in 91 units digit is 1 see 1^4 u'll get 1 then u mutiply all units digits u got ie 9*5*1 u'll get 45 in question they had asked only units digit then the answer is 5..
• 11 years agoHelpfull: Yes(7) No(0)
• the unit digit will be 5
• 11 years agoHelpfull: Yes(2) No(0)
• Answer will be 5.
  
• 11 years agoHelpfull: Yes(1) No(0)
• (23*23*565*565*565*565*91*91*91*91*91)%10
  =(3*3*5*5*5*5*1*1*1*1)%10
  =(9*25*25)%10
  =45%10
  =5
• 10 years agoHelpfull: Yes(0) No(0)