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References
- ↑ Large Prime Number Found by SGI/Cray Supercomputer
- ↑ "Slowinski, a software engineer for Cray Research Inc. in Chippewa Falls, discovered the number at 11:36 a.m. Monday. [i.e. 1983 September 19]" Jim Higgins, "Elusive numeral's number is up" and "Scientist finds big number" in The Milwaukee Sentinel - Sep 24, 1983, p. 1, p. 11 [retrieved 2012-10-23]
