Question

3. Which one of the following is not a
valid octal number? *
O 231
O 456
O 970
O 811
O Other:​

Answer 1

Answer:

The Octal Numbering System is very similar in principle to the previous hexadecimal numbering system except that in Octal, a binary number is divided up into groups of only 3 bits, with each group or set of bits having a distinct value of between 000 (0) and 111 ( 4+2+1 = 7 ).

Answer 2

970 is not a valid octal number.

The numbers 0 to 7 are used in the Octal Number System, which has an eight-digit basis. When paired in pairs of three, octal numbers are commonly represented as binary numbers in the number system. In the binary system, an octal number of 128 is expressed as 0010102, where 1 is equivalent to 001 and 2 is comparable to 010.