Uploaded May 2026 | Updated September 2026, 2 weeks ago

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Pure mathematicians tell us that our 30 billion or so credit, debit and prepaid cards are only safe because of the seemingly esoteric world of number theory, and prime numbers in particular. But how?

James Maynard takes your details in his Sophie Germain lecture. Watch the full lecture: youtu.be/yq4zHsdOy54

#shorts #maths #security