A112432 Carmichael numbers equal to the product of 9 primes.

9746347772161, 11537919313921, 11985185775745, 14292786468961, 23239986511105, 24465723528961, 26491881502801, 27607174936705, 30614445878401, 30912473358481, 34830684315505, 51620128928641

Offset: 1

Author

Shyam Sunder Gupta, Dec 11 2005

Keywords

• easy
• nonn

Examples

			a(1) = 9746347772161 = 7*11*13*17*19*31*37*41*641.
		

Links

• Amiram Eldar, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A002997, A087788, A141711, A074379, A112428, A112429, A112430, A112431, A006931.

Programs

PARI

is(n)={omega(n)==9&&is_A002997(n)} \\ M. F. Hasler, Apr 14 2015