FEC Hex in Octal

Converting a hexadecimal number to octal without a calculator involves first converting the hexadecimal number to binary, then grouping the binary digits into groups of three, and finally converting each group to its octal equivalent. Here's a step-by-step guide for hexadecimal numberFEC:

F16 = 11112

E16 = 11102

C16 = 11002

Group the binary digits into groups of three, starting from the right. If the last group has fewer than three digits, pad it with zeros on the left.

Binary: 111 111 101 100

With Zeros: 111 111 101 100

Convert each group of binary digits to its octal equivalent:

1112 = 78

1112 = 78

1012 = 58

1002 = 48