8421 Decimal in Octal

Let's convert the decimal number 8421 to octal without using a calculator:

Start by dividing 8421 by 8:

8421 ÷ 8 = 1052 (Quotient) with a remainder of 5

Now, divide the quotient (1052) by 8:

1052 ÷ 8 = 131 (Quotient) with a remainder of 4

Now, divide the quotient (131) by 8:

131 ÷ 8 = 16 (Quotient) with a remainder of 3

Now, divide the quotient (16) by 8:

16 ÷ 8 = 2 (Quotient) with a remainder of 0

The Quotient is less than 8 (2), so we will transfer it to the beginning of the number as a reminder.

Now, write down the remainders from the last division to the first:

20345