2459868287

This number is a prime.

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The smallest prime that remains prime for D = 1 to 8 in 2D4D5D9D8D6D8D2D8D7. Primes produced are 2141519181618121817, 2242529282628222827, 2343539383638323837, 2444549484648424847, 2545559585658525857, 2646569686668626867, 2747579787678727877, and 2848589888688828887. [Gupta]

Submitted: 2019-02-23 12:28:18; Last Modified: 2019-02-23 15:28:37.