1,1

Greatest prime divisor of 27795302832777615 which is a concatenation of first four terms 2,7,795302832777615 is prime(3) = 5, 27795302832777615= 3^33*5.

Cf. A095216.

Sequence in context: A153089 A077548 A050809 this_sequence A073410 A021361 A073001

Adjacent sequences: A095214 A095215 A095216 this_sequence A095218 A095219 A095220

base,more,nonn,bref

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jun 10 2004