How many hexadecimal characters does an MD5 checksum have?

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Multiple Choice

How many hexadecimal characters does an MD5 checksum have?

Explanation:
MD5 yields a 128-bit digest, and when you write that digest in hexadecimal, each hex character represents 4 bits. So 128 bits / 4 = 32 hex characters. Equivalently, the raw MD5 output is 16 bytes, and each byte becomes two hex characters, giving 16 × 2 = 32 hex digits. That’s why MD5 checksums are displayed as 32 hexadecimal characters. The other options would imply digests of different sizes (64, 192, or 256 bits), which do not match MD5.

MD5 yields a 128-bit digest, and when you write that digest in hexadecimal, each hex character represents 4 bits. So 128 bits / 4 = 32 hex characters. Equivalently, the raw MD5 output is 16 bytes, and each byte becomes two hex characters, giving 16 × 2 = 32 hex digits. That’s why MD5 checksums are displayed as 32 hexadecimal characters. The other options would imply digests of different sizes (64, 192, or 256 bits), which do not match MD5.

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