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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) The smallest 4digit prime n such that p_{1} = 2n+3, p_{2} = 4n+5, and p_{3} = 6n+7 are all prime. [Russo] The smallest invertible prime whose concatenated pair form a strobogrammatic prime (11096011). The sequence begins 1109, 1699, 6689, 6691, 6991, .... The only emirp derived from a twodigit prime by inserting the sum of its digits inbetween. [Loungrides] In the ISO 860 date format the terrorist attack against New York on day "nine eleven" is written as 1109. [Petersson] In Hebrew, the gematria value of משיח בן דוד ("Messiah, the son of David") is 424. The first occurrence of 424 in pi begins from position 1109, and is followed by 541 (the 100th prime number and the gematria value of "Israel"). 1109 is the 186th prime number, and the first occurrence of 186 in begins from position 424. [Slattery]
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