Program to find last two digits of 2 ^ n | Find the first digit ; Get the last digit from the number ; Remove last digit from number ; Get the last digit from the number ( last second of num ) ; Take last digit to ten 's position i.e.  last second digit ; Add the value of ones and tens to make it complete 2 digit number ; return the first digit ; Driver Code ; pow function used
< ? php function LastTwoDigit ( $ num ) { $ one = $ num % 10 ; $ num /= 10 ; $ tens = $ num % 10 ; $ tens *= 10 ; $ num = $ tens + $ one ; return $ num ; } $ n = 10 ; $ num = 1 ; $ num = pow ( 2 , $ n ) ; echo ( " Last ▁ " . 2 ) ; echo ( " ▁ digits ▁ of ▁ " . 2 ) ; echo ( " ^ " . $ n . " ▁ = ▁ " ) ; echo ( LastTwoDigit ( $ num ) ) ; ? >