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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) The smallest strobogrammatic prime containing all the invertible digits {0, 1, 6, 8, 9} such that (a) its square (36130429589763721) is pandigital; (b) the reversal of its square (12736798592403163) is a pandigital prime. [Bajpai] The largest strobogrammatic emirp with the least length containing all of the invertible digits {0, 1, 6, 8, 9}. [Loungrides]
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