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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) The 23rd of November is the only date which can be read as a prime in both formats: 'daymonth' and 'monthday'. [Kik] The last primorial prime (p# + 1) in which its square root is less than p^2, i.e., 2311^(1/2) ~ 48 < 121 = 11^2. [Nicholson] The concatenation of the first three prime Ulam numbers (2,3,11) is a prime. [Gupta] The largest member in a set of twin primes generated by the formula 30(n*(n+5)/2)+60 +1 and 1, for N = 0 to 10. [Homewood]
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