নিচের কোন Octal সংখ্যাটি Decimal সংখ্যা ৫৫ এর সমতুল্য

Divide the number repeatedly by 9 until the quotient becomes 08 55          78 6            6    0 When 55 is divided by 8 , the quitient is 6 and the remiander is 7 When 6 is divided by 8, th quitient is 0 and the remiander is 6. Write the remainders from bottom to top (55)10  = (67)8