521 Decimal in Binary

Let's convert the decimal number 521 to binary without using a calculator:

Step 1: Divide by 2

Start by dividing 521 by 2:

521 ÷ 2 = 260 (Quotient) with a remainder of 1

Step 2: Divide the Quotient

Now, divide the quotient (260) by 2:

260 ÷ 2 = 130 (Quotient) with a remainder of 0

Step 3: Divide the Quotient

Now, divide the quotient (130) by 2:

130 ÷ 2 = 65 (Quotient) with a remainder of 0

Step 4: Divide the Quotient

Now, divide the quotient (65) by 2:

65 ÷ 2 = 32 (Quotient) with a remainder of 1

Step 5: Divide the Quotient

Now, divide the quotient (32) by 2:

32 ÷ 2 = 16 (Quotient) with a remainder of 0

Step 6: Divide the Quotient

Now, divide the quotient (16) by 2:

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

Step 7: Divide the Quotient

Now, divide the quotient (8) by 2:

8 ÷ 2 = 4 (Quotient) with a remainder of 0

Step 8: Divide the Quotient

Now, divide the quotient (4) by 2:

4 ÷ 2 = 2 (Quotient) with a remainder of 0

Step 9: Divide the Quotient

Now, divide the quotient (2) by 2:

2 ÷ 2 = 1 (Quotient) with a remainder of 0

Step 10: Final actions

The Quotient is less than 2 (1), so we will transfer it to the beginning of the number as a reminder.

Step 11: Write the Remainders in Reverse Order

Now, write down the remainders obtained in reverse order:

1000001001

So, the binary representation of the decimal number 521 is 1000001001.

Decimal To Binary Converter

Other examples of Decimal to Binary conversion