
Here we will show you how to convert the octal number 77040 to a binary number. First note that the octal number system has eight different digits (0 1 2 3 4 5 6 7) and the binary number system has only two different digits (0 and 1).
The four steps used to convert 77040 from octal to binary are explained below.
Step 1)
Multiply the last digit in 77040 by 8⁰, multiply the second to last digit in 77040 by 8¹, multiply the third to last digit in 77040 by 8², multiply the fourth to last digit in 77040 by 8³, and so on, until all the digits are used:
0 × 8⁰ = 0
4 × 8¹ = 32
0 × 8² = 0
7 × 8³ = 3584
7 × 8⁴ = 28672
Step 2)
Next, we add up all the products we got from Step 1, like this:
0 + 32 + 0 + 3584 + 28672 = 32288
Step 3)
Now we divide the sum from Step 2 by 2. Put the remainder aside. Then divide the whole part by 2 again, and put the remainder aside again. Keep doing this until the whole part is 0.
32288 ÷ 2 = 16144 with 0 remainder
16144 ÷ 2 = 8072 with 0 remainder
8072 ÷ 2 = 4036 with 0 remainder
4036 ÷ 2 = 2018 with 0 remainder
2018 ÷ 2 = 1009 with 0 remainder
1009 ÷ 2 = 504 with 1 remainder
504 ÷ 2 = 252 with 0 remainder
252 ÷ 2 = 126 with 0 remainder
126 ÷ 2 = 63 with 0 remainder
63 ÷ 2 = 31 with 1 remainder
31 ÷ 2 = 15 with 1 remainder
15 ÷ 2 = 7 with 1 remainder
7 ÷ 2 = 3 with 1 remainder
3 ÷ 2 = 1 with 1 remainder
1 ÷ 2 = 0 with 1 remainder
Step 4)
In the final step, we take the remainders from Step 3 and put them together in reverse order to get our answer to 77040 octal to binary:
77040 octal = 111111000100000 binary
Octal to Binary Converter
Here you can convert another octal number to binary. Remember, octal numbers only include digits 0 through 7.
77041 octal to binary
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