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Old 2018-02-28, 09:37   #5
Steve One
 
Feb 2018

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Mistake made. Should read ...on number line (13+n30) for example, 113 as a lowest prime factor multiplies with 131 which is greater than 121squared, not (23+n30). AND, the last part of the equation should read...finally × (121squared minus 1)/30, not (prime(n)-1)/30. Apologies, l do that too often. I don't seem to be able to edit the post.
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