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Goldbach revisited (Posted on 2013-03-15) Difficulty: 4 of 5
1.How many distinct prime pairs sum up to 10000 ?
2.How many distinct prime pairs sum up to 100000000 ?

Provide exact answer to 1 and approximate answer to 2 .

The order of addends does not matter.

No Solution Yet Submitted by Ady TZIDON    
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exact answers | Comment 1 of 2
the limits for both 1 & 2 are sufficiently low to permit brute force searches using an existing table of primes under 100 million.  I get:

1) 127
2) 291400

  Posted by Daniel on 2013-03-15 13:42:27
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