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Search: id:A070842
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| A070842 |
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Smallest n-digit number with exactly n prime divisors. There are no further terms. |
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+0
2
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| 2, 10, 102, 1020, 10010, 101010, 1009470, 11741730, 223092870, 6469693230
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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a(4) = 1020 with the prime divisors 2, 3, 5, 17.
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CROSSREFS
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Cf. A001221 (omega), A002110 (primorials), A070843.
Sequence in context: A101686 A074109 A036336 this_sequence A086927 A135058 A154256
Adjacent sequences: A070839 A070840 A070841 this_sequence A070843 A070844 A070845
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KEYWORD
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base,nonn,fini,full
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), May 12 2002
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EXTENSIONS
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More terms from Robert G. Wilson v (rgwv(AT)rgwv.com) and Rick L. Shepherd (rshepherd2(AT)hotmail.com), May 14 2002
Corrected and edited by Ray Chandler, Feb 15 2009
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