The largest known safe prime is equal to 2,618,163,402,417 × 21,290,001 - 1[1]; it has been discovered in October 2016. It is 388,342 digits long, and associated to the largest known Sophie-Germain prime.
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The largest known safe prime is equal to 2,618,163,402,417 × 21,290,001 - 1[1]; it has been discovered in October 2016. It is 388,342 digits long, and associated to the largest known Sophie-Germain prime.