Keith Number - Keith Clusters

Keith Clusters

A Keith cluster is a related set of Keith numbers such that one is a multiple of another. For example, (14, 28), (1104, 2208), and (31331, 62662, 93993). These are possibly the only three examples of a Keith cluster.

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Famous quotes containing the words keith and/or clusters:

    “For the great Gaels of Ireland
    Are the men that God made mad,
    For all their wars are merry
    And all their songs are sad.”
    —Gilbert Keith Chesterton (1874–1936)

    “Where we such clusters had,
    As made us nobly wild, not mad;
    And yet each verse of thine
    Outdid the meat, outdid the frolic wine.”
    —Robert Herrick (1591–1674)