Find the unit's digit in 264^102+264^103  Pick:
A) 0  B) 1  C) 2  D) 3  E) 5
Required unit's digit = unit's digit in 4102+4103.4102+4103.   Now, 4242 gives unit digit 6.   ⇒ 41024102 gives unit digit 6.   ⇒ 41034103 gives unit digit of the product 6×46×4 i.e., 4.   Hence, unit's digit in 264102+264103264102+264103   = unit's digit in (6+4)=0   0
<result>A</result>
Find the unit's digit in 264^102+264^103