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A046427 7 steps needed to reach a prime under prime factor concatenation procedure. +0
1
91, 128, 196, 305, 344, 416, 438, 456, 554, 656, 690, 707, 746, 750, 779, 897, 910, 950, 1014, 1060, 1098, 1122, 1199, 1209, 1247, 1380, 1507, 1545, 1606, 1679, 1680, 1700, 1711, 1769, 1833, 1884, 1887, 1888, 1928, 1971, 1984, 2000 (list; graph; listen)
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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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