Find the digit at the unit's place of (107)59 x (313)87 x (438)129 x (399)99. Share with your friends Share 3 Brijendra Pal answered this Hi, Unit digit of 10759×31387×438129×39999 will be same as that of 759×387×8129×999Now try to make last digit 1 we know that 74 end with 1 and so is the 34 and 92and for 8129 we know that 84 ends with 6 so make it close to that so that we may use the property that 6 to any power always end with 6.= 7414×73×3422×3×8432×8×9249×9=1×3×1×3×6×8×1×9 Writing last digit only=3×3×9×6×8=1×8= 8 So unit digit is 8 Regards -6 View Full Answer
