11111...11111 (271-digits)

This number is a composite.

1 1111111111 1111111111 1111111111 1111111111 1111111111 1111111111
1111111111 1111111111 1111111111 1111111111 1111111111 1111111111 1111111111
1111111111 1111111111 1111111111 1111111111 1111111111 1111111111 1111111111
1111111111 1111111111 1111111111 1111111111 1111111111 1111111111 1111111111

Single Curio View: (Seek other curios for this number)

           1 1 1 1 1 1 1 1 1 1 
          1 1 1 1 1 1 1 1 1 1 1 
         1 1 1 1 1 1 1 1 1 1 1 1 
        1 1 1 1 1 1 1 1 1 1 1 1 1 
       1 1 1 1 1 1 1 1 1 1 1 1 1 1 
      1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
     1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
   1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
  1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
   1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
     1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
      1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
       1 1 1 1 1 1 1 1 1 1 1 1 1 1 
        1 1 1 1 1 1 1 1 1 1 1 1 1 
         1 1 1 1 1 1 1 1 1 1 1 1  
          1 1 1 1 1 1 1 1 1 1 1

A repunit hex-congruent prime in base 6. [Dobb]

Submitted: 2003-03-14 10:49:12; Last Modified: 2008-01-30 17:28:00.