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Single Curio View: (Seek other curios for this number) 693 is the index of smallest prime p such that the concatenation of 1000 consecutive primes beginning with p is prime, i.e., p(693).p(694).p(695)...p(1692) is prime. Note that the resulting prime contains 4463digits. [Firoozbakht]
Submitted: 20040211 05:27:41; Last Modified: 20080130 11:28:00.
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