@oxfordmathematics: 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 via the Oxford Mathematics YouTube Channel. #maths #stem #mathtok

Oxford Mathematics
Oxford Mathematics
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Sunday 03 May 2026 15:11:02 GMT
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pterodactylptodd
Todd Denaro :
When the numbers get very large, couldn’t you just eliminate the lower range of the set of prime numbers from your guess and check method to decrypt? Or are they still in the set of possible combinations because you could take a near very large prime multiplied by a smaller prime to achieve a reasonably large number?
2026-05-19 07:11:21
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rossharrison87
Ross Harrison :
Excellent an education
2026-05-03 16:45:05
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