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Carmichael numbers equal to the product of 8 primes.
8

%I #9 Jun 25 2019 10:45:22

%S 232250619601,306177962545,432207073585,576480525985,658567396081,

%T 689702851201,747941832001,1013666981041,1110495895201,1111586883121,

%U 1286317859905,1292652236161,1341323384401,1471186523521,1567214060545

%N Carmichael numbers equal to the product of 8 primes.

%H Amiram Eldar, <a href="/A112431/b112431.txt">Table of n, a(n) for n = 1..10000</a>

%e a(1) = 232250619601 = 7*11*13*17*31*37*73*163.

%o (PARI) is(n)={bigomega(n)==8&&is_A002997(n)} \\ _M. F. Hasler_, Apr 14 2015

%Y Cf. A002997, A087788, A141711, A074379, A112428, A112429, A112430, A112432, A006931.

%K easy,nonn

%O 1,1

%A _Shyam Sunder Gupta_, Dec 11 2005