Largest Even and Odd N | Function to print the largest N - digit even and odd numbers of base B ; Initialise the Number ; If Base B is even , then B ^ n will give largest Even number of N + 1 digit ; To get even number of N digit subtract 2 from B ^ n ; To get odd number of N digit subtract 1 from B ^ n ; If Base B is odd , then B ^ n will give largest Odd number of N + 1 digit ; To get even number of N digit subtract 1 from B ^ n ; To get odd number of N digit subtract 2 from B ^ n ; Driver 's Code ; Function to find the numbers
function findNumbers ( n , b ) { var even = 0 , odd = 0 ; if ( b % 2 == 0 ) { even = Math . pow ( b , n ) - 2 ; odd = Math . pow ( b , n ) - 1 ; } else { even = Math . pow ( b , n ) - 1 ; odd = Math . pow ( b , n ) - 2 ; } document . write ( " " + even + " " ) ; document . write ( " " + odd ) ; } var N = 2 , B = 5 ; findNumbers ( N , B ) ;