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21 August 2019
|14:40||George Woltman (diff | hist) . . (+138) . . GeekPrime|
|14:37||Great Internet Mersenne Prime Search (diff | hist) . . (+91) . . GeekPrime|
|12:51||Probable prime (diff | hist) . . (+315) . . GeekPrime|
|12:10||Riesel prime 1 (diff | hist) . . (-79) . . Karbon (NWo used)|
|11:07||M51 (diff | hist) . . (+95) . . GeekPrime|