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Two sided primes

Prime which is left-truncatable prime and right-truncatable prime.

There are known to be 15 decimal two-sided primes.

First 15: 2, 3, 5, 7, 23, 37, 53, 73, 313, 317, 373, 797, 3137, 3797, 739397

Checkout list of first: 10, 50 two-sided primes. You can also check all two-sided primes.

Checkout two-sided primes up to: 100, 500, 1000, 10000.

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