Records
As of October 2012, the largest known safe prime is 18543637900515×2666668−1. This prime, along with the corresponding largest known Sophie Germain prime, was found in April 2012.
On 5 February 2007, a discrete logarithm modulo a 160-digit (530-bit) safe prime was computed. See Discrete logarithm records.
Read more about this topic: Safe Prime
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