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To convert a binary number to an octal number, you need to know how an octal number is represented in binary. It is like this:

0 = 000 4 = 100

1 = 001 5 = 101

2 = 010 6 = 110

3 = 011 7 = 111

As you can see, an octal number consists of 3 'bits' (either a 0 of a 1).

Now, to convert a binary number to an octal number, you first have to group the binary digits into groups of 3 bits (starting from the right). Then, you convert every group of bits into octal numbers. This way you get your binary number into an octal one.

For example:

(1010100111010010)2

We group them into groups of 3 bits, starting from the right.

1 010 100 111 010 010

As you see, we have a single digit left. We must add 0's to make it a group of 3 bits.

001 010 100 111 010 010

Then we convert every group into an octal number, according to the table above.

001 = 1 010 = 2 100 = 4 111 = 7 010 = 2 010 = 2

And in this way, you converted a binary number into an octal one.

(1010100111010010)2 = (124722)8

Q: How can convert binary to octal?

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1111111010 = octal 1772

You must first convert them to a common base. For example, convert all to binary.

Convert each "digit" of the octal into a triplet of binary digits, according to the following rule: Octal Binary 0 000 1 001 2 010 3 011 4 100 5 101 6 110 7 111 So, for example, octal 53 = binary 101 011 [= decimal 43]

Convert every octal digit into three binary digit: 0->000 1->001 2->010 3->011 4->100 5->101 6->110 7->111

The answer depends on what you are converting from: binary, ternary, octal, hexadecimal ...

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In binary this number is equivalent to 11111000011 while in octal it is 3703

Don't. 889 is not an octal number.

1111111010 = octal 1772

221122: Binary = 1000100001000100100010 Octal = 10410442 Decimal = 2232610

10111001100001000

fdfd

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You must first convert them to a common base. For example, convert all to binary.

128 is not a valid octal number. Please restate the question.