158

This number is a composite.

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Inserting 158 zeros between the first four consecutive primes results in a prime, 2*10^(3*159)+3*10^(2*159)+5*10^159+7. [Opao]

Submitted: 2004-01-13 01:20:14;   Last Modified: 2008-01-30 11:28:00.
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