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Smallest number beginning with 7 and having exactly n distinct prime divisors.
9

%I #5 Dec 05 2013 19:55:51

%S 7,72,70,714,7140,71610,746130,70136220,703600590,70015935990,

%T 700288518930,7420738134810,701098433345310,70007243563797540,

%U 757887406446280110,70025936403159126390,7001749954335151685670,700007496840185797172910

%N Smallest number beginning with 7 and having exactly n distinct prime divisors.

%e a(3) = 70 = 2*5*7.

%Y Cf. A077326, A077327, A077328, A077329, A077330, A077331, A077333, A077334.

%Y Cf. A106411-A106419, A106421-A106429.

%K base,nonn

%O 1,1

%A _Amarnath Murthy_, Nov 04 2002

%E a(5)-a(10) from _Ray Chandler_, Apr 17 2005

%E More terms from _Ray Chandler_, May 02 2005