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teddyh
on March 29, 2021
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Suez Canal says traffic in channel resumes after s...
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I find it neat? strange? that IMO numbers have checksums:
It’s a relatively common feature of ID numbers:
https://en.wikipedia.org/wiki/Luhn_algorithm
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It’s a relatively common feature of ID numbers: https://en.wikipedia.org/wiki/Luhn_algorithm