Enigma 1267: Prime progression
29 December 2014
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From New Scientist #2423, 29th November 2003 [link]
George: Hi, Fred! Can you find a list of 10 prime numbers in arithmetic progression?
Fred: Sounds like one for the masochists – I wouldn’t know where to start.
George: I’ll give you a start. My list has the smallest possible common difference for a series of 10, and the smallest number in the AP is smaller than the common difference.
Colin: That is all you need to know. What are George’s smallest number and common difference?