what is the units digit of 13^24*68^57+24^13*57^68+1234+578?

• answer should be 4....
• 11 years agoHelpfull: Yes(17) No(3)
• Last digit is 8
• 11 years agoHelpfull: Yes(4) No(6)
• ans should be 6
• 11 years agoHelpfull: Yes(2) No(0)
• 13^24--> consider units place i.e., 3
  3^1-3--rem1
  3^2-9--rem2
  3^3=7--rem3
  3^4=1--rem0 24/4--rem 0 ->1 similarly calclute 68^57
  i.e., 1*2+4*1+1234+578=1808 units digit is 8
• 6 years agoHelpfull: Yes(2) No(0)
• @jana-plz explain
  
• 11 years agoHelpfull: Yes(0) No(0)
• my ans is 8
• 11 years agoHelpfull: Yes(0) No(1)