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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) The smallest prime P formed from the concatenation of five consecutive tban numbers in the pattern {a, b, c, d, e, d, c, b, a}, i.e., {109, 111, 400, 401, 404, 401, 400, 111, 109}. Curiously, P is also expressible as the sum of two squares. [Bajpai]
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