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Orders of magnitude of data. The yottabyte is a multiple of the unit byte for digital information. The prefix yotta indicates multiplication by the eighth power of 1000 or 1024 in the International System of Units (SI), and therefore one yottabyte is one septillion (one long scale quadrillion) bytes. The unit symbol for the yottabyte is YB.
A megabyte is 10 6 or 1,000,000 bytes. One megabyte (abbreviated MB) is equal to 1,000 kilobytes and precedes the gigabyte unit of measurement. While a megabyte is technically 1,000,000 bytes, megabytes are often used synonymously with mebibytes, which contain 1,048,576 bytes (2 20 or 1,024 x 1,024 bytes).ne megabyte (abbreviated MB) is equal to 1,000 kilobytes and precedes the gigabyte unit of measurement.