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A134854
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Least prime of the form 1 + p*2^n, where p is an odd prime.
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4
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7, 13, 41, 113, 97, 193, 641, 769, 11777, 13313, 59393, 12289, 40961, 114689, 163841, 2424833, 6946817, 786433, 5767169, 7340033, 23068673, 155189249, 595591169, 1224736769, 167772161, 469762049, 2281701377, 3489660929, 12348030977
(list; graph; refs; listen; history; internal format)
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