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Single Curio View: (Seek other curios for this number) Take the nine pairs (a,b) with a+b=19; take the sum a*b+19 for all these nine pairs; ALL the sums are primes. 19 is the largest prime that will do this. [Bergot]
Submitted: 20110528 12:22:35; Last Modified: 20110528 16:04:50.
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