29123473
This number is a prime.
The first of ten primes in the finite sequence 29123473, 291234373, 2912343373, 29123433373, 291234333373, 29123433333373, 29123433333373, 291234333333373, 2912343333333373, 29123433333333373, formed by inserting increasing string of the digit "3" in between the consecutive digits "4" and "7". Found by I. J. Taneja. [Rivera]
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