The largest known Woodall prime is equal to 8,508,301 × 217,016,603 − 1 = 17,016,602 × 217,016,602 − 1, which is 5,122,515 digits long; it has been discovered on March 22, 2018, by PrimeGrid.[1]

The previous record was 938,237 × 23,752,950 − 1 = 3,752,948 × 23,752,948 − 1, which has 1,129,757 digits long.

Sources

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