10000...00000 (700-digits)

This number is a composite.

Call this number N and you get with N+209264286017367+d the smallest 700-digit prime quintuplet to pattern d=0,4,6,10,12. For N+2254633393747621+d you get the 2nd smallest 700-digit prime quintuplet to pattern d=0,2,6,8,12. [Luhn]