101107157131

This number is a prime.

                                                               10 1107157131

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A right-truncatable prime formed from four 3-digit primes such that deleting from the right, each time one of them, always remains a prime, i.e., 101107157, 101157, 101. May we call it a "special" right-truncatable prime? [Loungrides]

Submitted: 2015-09-05 00:15:51;   Last Modified: 2019-02-16 08:07:50.
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