Multiplication is a binary operation. That means you need to have two (or more) numbers that you multiply together to get an answer. There is only one number in your question.
128 in octal is 200.
Octal 124
262 octal is178 decimal.262 decimal is406 octal
by whom octal is invented
In octal notation, the ASCII code for a space is 040. So, the octal equivalent for a space is simply 040.
FD2 (hexadecimal) = 7722 (octal)
a digit from 0 to 7 in octal notation.
octal was invented in china in 1256
Decimal 18 = 22 octal
Hex 254 = 1124 octal
0.375 = 3/8 = 0.3 in octal
(83)base10 to octal