what is the unit digit in [ ( 6273 ) ^ 1793 x ( 625 ) ^ 317 x ( 341 ) ^ 491 ] ?
unit digit in ( 6374 ) ^ 1793 = unit digit in ( 4 ) ^ 1793 = unit digit in [ ( 4 ^ 2 ) ^ 896 x 4 ] = unit digit in ( 6 x 4 ) = 4 unit digit in ( 625 ) ^ 317 = unit digit in ( 5 ) ^ 317 = 5 unit digit in ( 341 ) ^ 491 = unit digit in ( 1 ) ^ 491 = 1 required digit = unit digit in ( 4 x 5 x 1 ) = 0 answer is 0
power(multiply(317, 341), subtract(const_3, const_3))