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(just those submitted by Gupta)
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Just showing those entries submitted by 'Gupta': (Click here to show all)

+ The smallest non-palindromic prime which on subtracting its reverse gives a perfect square (i.e., 43 - 34 = 3^2). [Gupta]

+ The smallest prime formed from reverse concatenation of two consecutive numbers. [Gupta]

+ Smallest multidigit prime p such that the pth prime is palindromic. [Gupta]

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