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Storage data estimation

The post says that “the storage required for 500 million users is 111000 MB”, but 500,000,000 * 222 Bytes / 1000 (to convert to MB) = 111,000,000 MB = 111000 GB. Am I wrong?

you are dividing by 10^3 to convert Bytes to MegaBytes which is wrong, it should be divided by 10^6 instead.

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