find the unit digit 888^9235!(factorial) + 222^9235! + 666^2359! + 999^9999!

1) 7
2) 8
3) 9
4) 6

• 888^9235! give unit digit 0
  222^9235! give unit digit 0
  666^2359! give unit digit 6
  999^9999! give unit digit 0
  so unit digit of whole equation is 0+0+6+0=6
  so ans is option (4).
  
  
• 11 years agoHelpfull: Yes(0) No(2)