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A050694 Composite numbers n such that all prime factors of n are a substring of n. 4
25, 32, 125, 128, 135, 175, 243, 250, 256, 324, 375, 432, 512, 625, 735, 875, 1024, 1250, 1352, 1372, 1593, 1675, 1715, 1792, 2048, 2176, 2304, 2500, 2510, 2560, 2570, 2744, 3072, 3087, 3125, 3375, 3645, 3675, 3792, 4232, 4375, 5120, 5210, 5230, 5832 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

LINKS

Gil Broussard, Integers containing prime factors as substrings..

EXAMPLE

E.g. 1675 = 5.5.67 -> 167{5} and 1{67}5.

CROSSREFS

Cf. A050695, A050696, A035140, A050697.

Sequence in context: A172007 A107258 A035140 * A107608 A131610 A134099

Adjacent sequences:  A050691 A050692 A050693 * A050695 A050696 A050697

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Aug 15 1999.

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Last modified February 15 14:37 EST 2012. Contains 205822 sequences.