Why are four binary digits necessary to convert binary to hexadecimal?
Md Ariful Islam
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Dr. Md Rushad Rahman
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Hexadecimal is base-16 whereas binary is only in the form base-2. To account for this, you need four binary digits to allow for the 16 possible characters of hexadecimal. (Think 2^4=16 like how you would calculate the number of alternatives in physics.)
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