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Convert 200 from decimal to binary

(base 2) notation:

Power Test

Raise our base of 2 to a power

Start at 0 and increasing by 1 until it is >= 200

20 = 1

21 = 2

22 = 4

23 = 8

24 = 16

25 = 32

26 = 64

27 = 128

28 = 256 <--- Stop: This is greater than 200

Since 256 is greater than 200, we use 1 power less as our starting point which equals 7

Build binary notation

Work backwards from a power of 7

We start with a total sum of 0:


27 = 128

The highest coefficient less than 1 we can multiply this by to stay under 200 is 1

Multiplying this coefficient by our original value, we get: 1 * 128 = 128

Add our new value to our running total, we get:
0 + 128 = 128

This is <= 200, so we assign our outside coefficient of 1 for this digit.

Our new sum becomes 128

Our binary notation is now equal to 1


26 = 64

The highest coefficient less than 1 we can multiply this by to stay under 200 is 1

Multiplying this coefficient by our original value, we get: 1 * 64 = 64

Add our new value to our running total, we get:
128 + 64 = 192

This is <= 200, so we assign our outside coefficient of 1 for this digit.

Our new sum becomes 192

Our binary notation is now equal to 11


25 = 32

The highest coefficient less than 1 we can multiply this by to stay under 200 is 1

Multiplying this coefficient by our original value, we get: 1 * 32 = 32

Add our new value to our running total, we get:
192 + 32 = 224

This is > 200, so we assign a 0 for this digit.

Our total sum remains the same at 192

Our binary notation is now equal to 110


24 = 16

The highest coefficient less than 1 we can multiply this by to stay under 200 is 1

Multiplying this coefficient by our original value, we get: 1 * 16 = 16

Add our new value to our running total, we get:
192 + 16 = 208

This is > 200, so we assign a 0 for this digit.

Our total sum remains the same at 192

Our binary notation is now equal to 1100


23 = 8

The highest coefficient less than 1 we can multiply this by to stay under 200 is 1

Multiplying this coefficient by our original value, we get: 1 * 8 = 8

Add our new value to our running total, we get:
192 + 8 = 200

This = 200, so we assign our outside coefficient of 1 for this digit.

Our new sum becomes 200

Our binary notation is now equal to 11001


22 = 4

The highest coefficient less than 1 we can multiply this by to stay under 200 is 1

Multiplying this coefficient by our original value, we get: 1 * 4 = 4

Add our new value to our running total, we get:
200 + 4 = 204

This is > 200, so we assign a 0 for this digit.

Our total sum remains the same at 200

Our binary notation is now equal to 110010


21 = 2

The highest coefficient less than 1 we can multiply this by to stay under 200 is 1

Multiplying this coefficient by our original value, we get: 1 * 2 = 2

Add our new value to our running total, we get:
200 + 2 = 202

This is > 200, so we assign a 0 for this digit.

Our total sum remains the same at 200

Our binary notation is now equal to 1100100


20 = 1

The highest coefficient less than 1 we can multiply this by to stay under 200 is 1

Multiplying this coefficient by our original value, we get: 1 * 1 = 1

Add our new value to our running total, we get:
200 + 1 = 201

This is > 200, so we assign a 0 for this digit.

Our total sum remains the same at 200

Our binary notation is now equal to 11001000


Final Answer


We are done. 200 converted from decimal to binary notation equals 110010002.