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Check divisibility (Posted on 2015-09-16) Difficulty: 3 of 5
Find all prime numbers p for which number p^2 +11 has exactly six distinct divisors (counting 1 and itself).

See The Solution Submitted by Ady TZIDON    
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  Subject Author Date
re(3): computer exploration (probable spoiler)Ady TZIDON2015-09-17 10:23:34
re(2): computer exploration (probable spoiler)Charlie2015-09-17 07:47:38
analytical solutionxdog2015-09-16 19:23:40
Questionre: computer exploration (probable spoiler)Ady TZIDON2015-09-16 16:40:03
Some Thoughtscomputer exploration (probable spoiler)Charlie2015-09-16 16:13:12
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