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Answer
We are done. 18 converted from decimal to hexadecimal notation equals 1216.

↓Steps Explained:↓



Convert 18 from decimal to hexadecimal

(base 16) notation:

Power Test

Raise our base of 16 to a power

Start at 0 and increasing by 1 until it is >= 18

160 = 1

161 = 16

162 = 256 <--- Stop: This is greater than 18

Since 256 is greater than 18, we use 1 power less as our starting point which equals 1

Build hexadecimal notation

Work backwards from a power of 1

We start with a total sum of 0:


161 = 16

The highest coefficient less than 15 we can multiply this by to stay under 18 is 1

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

Add our new value to our running total, we get:
0 + 16 = 16

This is <= 18, so we assign our outside coefficient of 1 for this digit.

Our new sum becomes 16

Our hexadecimal notation is now equal to 1


160 = 1

The highest coefficient less than 15 we can multiply this by to stay under 18 is 2

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

Add our new value to our running total, we get:
16 + 2 = 18

This = 18, so we assign our outside coefficient of 2 for this digit.

Our new sum becomes 18

Our hexadecimal notation is now equal to 12


Final Answer

We are done. 18 converted from decimal to hexadecimal notation equals 1216.

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