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1021 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) The only prime formed from the concatenation of two semiprimes (10 and 21) whose prime factors consist of the four prime digits. [Silva]
Submitted: 2008-05-22 07:46:16; Last Modified: 2008-07-23 13:20:53.
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