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Primality and Divisibility (Posted on 2024-09-05) Difficulty: 3 of 5
Let n be an integer greater than 6. Prove that if n-1 and n+1 are both prime, then n2(n2+16) is divisible by 720.

No Solution Yet Submitted by Danish Ahmed Khan    
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  Subject Author Date
re: How about ...Steve Herman2024-09-05 22:37:51
Some ThoughtsHow about ...Larry2024-09-05 13:51:57
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