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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) 117^{2} + 2 are primes. [Russo] 117 can be written as the difference of prime squares (11^{2}  2^{2}) or prime cubes (5^{3}  2^{3}). [Sladcik] 117 = (1!_{2} + 1!_{2} + 7!_{2}) + ((1)!_{2} + (1)!_{2} + (7)!_{2}). Note that 117 is the only number with this property. [Firoozbakht]
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