On the seven-segment displays of pocket calculators and digital watches, 7 is the number with the most common glyph variation (0, 6 and 9 also have variant glyphs). Most calculators use three line. KETV NewsWatch 7 is your source for the latest local headlines and live alerts. Visit Omaha's most reliable source for breaking news. Your guide to the number 7, an odd number which is prime. Mathematical info, prime factorization, fun facts and numerical data for STEM, education and fun.

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