User contributions for 140.115.189.20
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20 September 2014
- 08:4808:48, 20 September 2014 diff hist −1,375 149 (number) →In mathematics current
- 08:2108:21, 20 September 2014 diff hist 0 Sociable number There is a new Mersenne prime: 2^57885161-1 current