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A112431
Carmichael numbers equal to the product of 8 primes.
8
232250619601, 306177962545, 432207073585, 576480525985, 658567396081, 689702851201, 747941832001, 1013666981041, 1110495895201, 1111586883121, 1286317859905, 1292652236161, 1341323384401, 1471186523521, 1567214060545
OFFSET
1,1
LINKS
EXAMPLE
a(1) = 232250619601 = 7*11*13*17*31*37*73*163.
PROG
(PARI) is(n)={bigomega(n)==8&&is_A002997(n)} \\ M. F. Hasler, Apr 14 2015
KEYWORD
easy,nonn
AUTHOR
Shyam Sunder Gupta, Dec 11 2005
STATUS
approved