Talk:Untouchable numbers: Difference between revisions
Content added Content deleted
(→reduction in the number of (counting) ranges: first failure at 300,000) |
|||
Line 22: | Line 22: | ||
factor //384( to small ) ;//152;//104;//64; // search area = factor*Limit</pre> |
factor //384( to small ) ;//152;//104;//64; // search area = factor*Limit</pre> |
||
:How about using Goldbach conjectue ( tested true > 1e18 ).All numbers are a sum of max three primes<BR> |
:How about using Goldbach conjectue ( tested true > 1e18 ).All numbers are a sum of max three primes<BR> |
||
proper div sum(p*q) = 1+p+q / p< |
proper div sum(p*q) = 1+p+q / p<q and both prime and p+q < Limit |
||
proper div sum(p*q*r) = 1+p+q+r+p*q+p*r+q*r/ p< |
proper div sum(p*q*r) = 1+p+q+r+p*q+p*r+q*r/ p<q<r and all prime and proper div sum(p*q*r) <=Limit |
||
: is limit for checks == limit^(1/3) |
: is limit for checks == limit^(1/3) or limit/3 |
||
:<b>EDIT found earlier failure at 300,000</b> used special glasses ;-) |
:<b>EDIT found earlier failure at 300,000</b> used special glasses ;-) |
||
<pre> |
<pre> |