421 Decimal in Octal

Let's convert the decimal number 421 to octal without using a calculator:

Step 1: Divide by 8

Start by dividing 421 by 8:

421 ÷ 8 = 52 (Quotient) with a remainder of 5

Step 2: Divide the Quotient

Now, divide the quotient (52) by 8:

52 ÷ 8 = 6 (Quotient) with a remainder of 4

Step 3: Final actions

The Quotient is less than 8 (6), so we will transfer it to the beginning of the number as a reminder.

Step 4: Write Remainders in Reverse Order

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

645

So, the octal representation of the decimal number 421 is 645.

Decimal To Octal Converter

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