-- Toys 'R' Us will buy back up to $1 billion of its stock, and open 115 stores in 1994.

-- Four months after losing Absolut vodka, Grand Met will sell Stolichnaya instead.

-- RiteAid said it will sell off four noncore businesses and close 200 drugstores.

-- Cray Research computed the largest prime number known, with 258,716 digits.

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