A046277 Largest prime substring in n! (0 if none).

0, 0, 2, 0, 2, 2, 7, 5, 3, 3, 3, 991, 9001, 227, 8291, 1307, 209227, 68742809, 4023737, 164510040883, 24329020081, 510909421717, 1240007, 258520167388849, 4840173323, 155112100433309, 9146112660563, 694504183521607

Offset

0,3

Links

Table of n, a(n) for n=0..27.

Example

22! = 1{1240007}27777607680000.

Crossrefs

Cf. A046276.

Sequence in context: A284570 A256847 A372023 * A053571 A307391 A129883

Adjacent sequences: A046274 A046275 A046276 * A046278 A046279 A046280

Keyword

nonn,base,less

Author

Patrick De Geest, Jun 15 1998

Status

approved