Question

the remainder when ( 15^23 + 23^23 ) is divided by 19 ,is

Answer 1

Formula: Remainder
(A^n + B^n/ A+B )=0
When n=odd

Here Rem(15^23+23^23/ 19)

N is odd

so , 15+23= 38

and 38 is divisible by 19

so Remainder: 0