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A036337 Largest integer with n digits and exactly n prime factors (counted with multiplicity). 1
7, 95, 994, 9999, 99996, 999992, 9999968, 99999840, 999999968, 9999999900, 99999999840, 999999999744, 9999999998720, 99999999998400, 999999999999000, 9999999999999744, 99999999999995904, 999999999999967232 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

LINKS

Matthew M. Conroy, Home page (listed instead of email address)

C. Rivera, Related puzzle

EXAMPLE

95 = 5 x 19, while 96, 97, 98, 99 and 100 have, respectively, 6,1,3,3 and 4 prime factors; thus 95 is the largest two digit number with exactly two prime factors.

CROSSREFS

Cf. A036335-A036338.

Sequence in context: A132114 A015225 A183521 * A186378 A201990 A130183

Adjacent sequences:  A036334 A036335 A036336 * A036338 A036339 A036340

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Dec 15 1998.

EXTENSIONS

More terms and better description from Matthew M. Conroy, May 25 2001

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Last modified February 15 07:58 EST 2012. Contains 205717 sequences.