10010...01001 (41-digits)

This number is a prime.

                               1 0010000001 1100101010 1010100111 0000001001

Just showing those entries submitted by 'Rivera': (Click here to show all)

Patrick de Geest discovered that every digt d in p is d+2 or d+6 or d+8 in q, r, or s, respectively: p=10010000001110010101010101001110000001001, q=32232222223332232323232323223332222223223, r=76676666667776676767676767667776666667667, s=98898888889998898989898989889998888889889 [Rivera]