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CockneyRebel
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08 Feb 2008, 2:14 pm

1273


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SilverProteus
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08 Feb 2008, 2:29 pm

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dalhousie12
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08 Feb 2008, 3:45 pm

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richie
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08 Feb 2008, 4:30 pm

SilverProteus wrote:
1259

1259 Is a prime.

1276=29x11x2²

1277 Is a prime, the third Prime in the Primes of the form 36n²-810n+2753 sequence, and 29th Prime in the Primes of the form n²+n+17 series.


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SilverProteus
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08 Feb 2008, 5:00 pm

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dalhousie12
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08 Feb 2008, 5:08 pm

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SilverProteus
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08 Feb 2008, 5:10 pm

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richie
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08 Feb 2008, 5:27 pm

dalhousie12 wrote:
1279

1279 is a prime, 26th in the Primes of form 2n²+29 sequence.

1281=61x7x3


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dalhousie12
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08 Feb 2008, 6:01 pm

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richie
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08 Feb 2008, 6:03 pm

1283 is a prime...


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dalhousie12
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08 Feb 2008, 6:05 pm

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richie
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08 Feb 2008, 6:09 pm

1285=257x5


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SilverProteus
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08 Feb 2008, 6:19 pm

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richie
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08 Feb 2008, 6:25 pm

1287=13x11x3²


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SilverProteus
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08 Feb 2008, 6:31 pm

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CockneyRebel
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08 Feb 2008, 6:40 pm

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