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13298267

This number is a composite.

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Each of the 30 numbers 13298267 + 1887270 k, k=0..29 is a "semiprime" (a product of two primes). There is no longer Arithmetic Progression of semiprimes whose terms are all less than 10^8. [Hartley]

Submitted: 2002-05-20 00:42:28; Last Modified: 2008-01-30 11:28:00.