This number is a prime.
Single Curio View: (Seek other curios for this number)Largest distinct-digit prime p for which 10*p+1, 10*p+3, 10*p+7 and 10*p+9 are primes. [Gupta]
Submitted: 2020-07-05 05:09:06; Last Modified: 2020-07-05 09:32:08.
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