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(just those submitted by Opao)
Prime Curios!

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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

Just showing those entries submitted by 'Opao': (Click here to show all)

+ Four fours raised to the fourth power plus one is prime. I.e., 4444^4+1 is prime. [Opao]

+ 4 fives plus five 4's is prime. [Opao]

+ The largest value for n less than 105, such that p = 2n + 3n is prime. [Opao]

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