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Sophie Germain

OldTrout, Going Postal
18th Century

Sophie Germain Primes and Cunningham Chains

28th September 2020 OldTrout 2232 Comments

A Sophie Germain prime is a prime number such that is also a prime number. That is, ,  where and are both prime.  For example, . The sequence begins Sophie Germain () explored these primes [more…]

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