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Home > The Math Factor > BC. Casting Out Nines
Podcast: The Math Factor
Episode:

BC. Casting Out Nines
Category: Religion & Spirituality
Duration: 00:06:20
Publish Date: 2006-08-17 09:05:54
Description: How do modern "trap-door" encryption schemes work? Over the next three weeks we'll explain, but to warm up, we talk about the medieval practice of "casting out nines".
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